281422960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:136

約数の個数: 320

約数和(自身を含む): 879943680

約数和(自身を除く): 598520720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 31, 35, 40, 43, 52, 56, 58, 62, 65, 70, 80, 86, 91, 104, 112, 116, 124, 130, 140, 145, 155, 172, 182, 203, 208, 215, 217, 232, 248, 260, 280, 290, 301, 310, 344, 364, 377, 403, 406, 430, 434, 455, 464, 496, 520, 559, 560, 580, 602, 620, 688, 728, 754, 806, 812, 860, 868, 899, 910, 1015, 1040, 1085, 1118, 1160, 1204, 1240, 1247, 1333, 1456, 1505, 1508, 1612, 1624, 1720, 1736, 1798, 1820, 1885, 2015, 2030, 2170, 2236, 2320, 2408, 2480, 2494, 2639, 2666, 2795, 2821, 3010, 3016, 3224, 3248, 3440, 3472, 3596, 3640, 3770, 3913, 4030, 4060, 4340, 4472, 4495, 4816, 4988, 5278, 5332, 5590, 5642, 6020, 6032, 6235, 6293, 6448, 6665, 7192, 7280, 7540, 7826, 8060, 8120, 8680, 8729, 8944, 8990, 9331, 9976, 10556, 10664, 11180, 11284, 11687, 12040, 12470, 12586, 13195, 13330, 14105, 14384, 15080, 15652, 16120, 16211, 16240, 17329, 17360, 17458, 17980, 18662, 19565, 19952, 21112, 21328, 22360, 22568, 23374, 24080, 24940, 25172, 26390, 26660, 28210, 30160, 31304, 31465, 32240, 32422, 34658, 34916, 35960, 37324, 38657, 39130, 42224, 43645, 44720, 45136, 46655, 46748, 49880, 50344, 52780, 53320, 56420, 58435, 62608, 62930, 64844, 69316, 69832, 71920, 74648, 77314, 78260, 81055, 81809, 86645, 87290, 93310, 93496, 99760, 100688, 105560, 106640, 112840, 113477, 116870, 121303, 125860, 129688, 138632, 139664, 149296, 154628, 156520, 162110, 163618, 173290, 174580, 186620, 186992, 193285, 211120, 225680, 226954, 233740, 242606, 251720, 259376, 270599, 277264, 309256, 313040, 324220, 327236, 346580, 349160, 373240, 386570, 409045, 453908, 467480, 485212, 502541, 503440, 541198, 567385, 606515, 618512, 648440, 654472, 693160, 698320, 746480, 773140, 818090, 907816, 934960, 970424, 1005082, 1082396, 1134770, 1213030, 1296880, 1308944, 1352995, 1386320, 1546280, 1636180, 1815632, 1940848, 2010164, 2164792, 2269540, 2426060, 2512705, 2705990, 3092560, 3272360, 3517787, 4020328, 4329584, 4539080, 4852120, 5025410, 5411980, 6544720, 7035574, 8040656, 9078160, 9704240, 10050820, 10823960, 14071148, 17588935, 20101640, 21647920, 28142296, 35177870, 40203280, 56284592, 70355740, 140711480, 281422960]

約数ペア:

[(1, 281422960), (2, 140711480), (4, 70355740), (5, 56284592), (7, 40203280), (8, 35177870), (10, 28142296), (13, 21647920), (14, 20101640), (16, 17588935), (20, 14071148), (26, 10823960), (28, 10050820), (29, 9704240), (31, 9078160), (35, 8040656), (40, 7035574), (43, 6544720), (52, 5411980), (56, 5025410), (58, 4852120), (62, 4539080), (65, 4329584), (70, 4020328), (80, 3517787), (86, 3272360), (91, 3092560), (104, 2705990), (112, 2512705), (116, 2426060), (124, 2269540), (130, 2164792), (140, 2010164), (145, 1940848), (155, 1815632), (172, 1636180), (182, 1546280), (203, 1386320), (208, 1352995), (215, 1308944), (217, 1296880), (232, 1213030), (248, 1134770), (260, 1082396), (280, 1005082), (290, 970424), (301, 934960), (310, 907816), (344, 818090), (364, 773140), (377, 746480), (403, 698320), (406, 693160), (430, 654472), (434, 648440), (455, 618512), (464, 606515), (496, 567385), (520, 541198), (559, 503440), (560, 502541), (580, 485212), (602, 467480), (620, 453908), (688, 409045), (728, 386570), (754, 373240), (806, 349160), (812, 346580), (860, 327236), (868, 324220), (899, 313040), (910, 309256), (1015, 277264), (1040, 270599), (1085, 259376), (1118, 251720), (1160, 242606), (1204, 233740), (1240, 226954), (1247, 225680), (1333, 211120), (1456, 193285), (1505, 186992), (1508, 186620), (1612, 174580), (1624, 173290), (1720, 163618), (1736, 162110), (1798, 156520), (1820, 154628), (1885, 149296), (2015, 139664), (2030, 138632), (2170, 129688), (2236, 125860), (2320, 121303), (2408, 116870), (2480, 113477), (2494, 112840), (2639, 106640), (2666, 105560), (2795, 100688), (2821, 99760), (3010, 93496), (3016, 93310), (3224, 87290), (3248, 86645), (3440, 81809), (3472, 81055), (3596, 78260), (3640, 77314), (3770, 74648), (3913, 71920), (4030, 69832), (4060, 69316), (4340, 64844), (4472, 62930), (4495, 62608), (4816, 58435), (4988, 56420), (5278, 53320), (5332, 52780), (5590, 50344), (5642, 49880), (6020, 46748), (6032, 46655), (6235, 45136), (6293, 44720), (6448, 43645), (6665, 42224), (7192, 39130), (7280, 38657), (7540, 37324), (7826, 35960), (8060, 34916), (8120, 34658), (8680, 32422), (8729, 32240), (8944, 31465), (8990, 31304), (9331, 30160), (9976, 28210), (10556, 26660), (10664, 26390), (11180, 25172), (11284, 24940), (11687, 24080), (12040, 23374), (12470, 22568), (12586, 22360), (13195, 21328), (13330, 21112), (14105, 19952), (14384, 19565), (15080, 18662), (15652, 17980), (16120, 17458), (16211, 17360), (16240, 17329)]