1405487920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:168

約数の個数: 240

約数和(自身を含む): 3749545728

約数和(自身を除く): 2344057808

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 37, 40, 53, 62, 68, 74, 80, 85, 106, 124, 136, 148, 155, 170, 185, 212, 248, 265, 272, 289, 296, 310, 340, 370, 424, 496, 527, 530, 578, 592, 620, 629, 680, 740, 848, 901, 1054, 1060, 1147, 1156, 1240, 1258, 1360, 1445, 1480, 1643, 1802, 1961, 2108, 2120, 2294, 2312, 2480, 2516, 2635, 2890, 2960, 3145, 3286, 3604, 3922, 4216, 4240, 4505, 4588, 4624, 5032, 5270, 5735, 5780, 6290, 6572, 7208, 7844, 8215, 8432, 8959, 9010, 9176, 9805, 10064, 10540, 10693, 11470, 11560, 12580, 13144, 14416, 15317, 15688, 16430, 17918, 18020, 18352, 19499, 19610, 21080, 21386, 22940, 23120, 25160, 26288, 27931, 30634, 31376, 32860, 33337, 35836, 36040, 38998, 39220, 42160, 42772, 44795, 45880, 50320, 53465, 55862, 60791, 61268, 65720, 66674, 71672, 72080, 76585, 77996, 78440, 85544, 89590, 91760, 97495, 106930, 111724, 121582, 122536, 131440, 133348, 139655, 143344, 153170, 155992, 156880, 166685, 171088, 179180, 194990, 213860, 223448, 243164, 245072, 266696, 279310, 303955, 306340, 311984, 331483, 333370, 358360, 389980, 427720, 446896, 474827, 486328, 533392, 558620, 566729, 607910, 612680, 662966, 666740, 716720, 779960, 855440, 949654, 972656, 1033447, 1117240, 1133458, 1215820, 1225360, 1325932, 1333480, 1559920, 1657415, 1899308, 2066894, 2234480, 2266916, 2374135, 2431640, 2651864, 2666960, 2833645, 3314830, 3798616, 4133788, 4533832, 4748270, 4863280, 5167235, 5303728, 5667290, 6629660, 7597232, 8267576, 9067664, 9496540, 10334470, 11334580, 13259320, 16535152, 17568599, 18993080, 20668940, 22669160, 26518640, 35137198, 37986160, 41337880, 45338320, 70274396, 82675760, 87842995, 140548792, 175685990, 281097584, 351371980, 702743960, 1405487920]

約数ペア:

[(1, 1405487920), (2, 702743960), (4, 351371980), (5, 281097584), (8, 175685990), (10, 140548792), (16, 87842995), (17, 82675760), (20, 70274396), (31, 45338320), (34, 41337880), (37, 37986160), (40, 35137198), (53, 26518640), (62, 22669160), (68, 20668940), (74, 18993080), (80, 17568599), (85, 16535152), (106, 13259320), (124, 11334580), (136, 10334470), (148, 9496540), (155, 9067664), (170, 8267576), (185, 7597232), (212, 6629660), (248, 5667290), (265, 5303728), (272, 5167235), (289, 4863280), (296, 4748270), (310, 4533832), (340, 4133788), (370, 3798616), (424, 3314830), (496, 2833645), (527, 2666960), (530, 2651864), (578, 2431640), (592, 2374135), (620, 2266916), (629, 2234480), (680, 2066894), (740, 1899308), (848, 1657415), (901, 1559920), (1054, 1333480), (1060, 1325932), (1147, 1225360), (1156, 1215820), (1240, 1133458), (1258, 1117240), (1360, 1033447), (1445, 972656), (1480, 949654), (1643, 855440), (1802, 779960), (1961, 716720), (2108, 666740), (2120, 662966), (2294, 612680), (2312, 607910), (2480, 566729), (2516, 558620), (2635, 533392), (2890, 486328), (2960, 474827), (3145, 446896), (3286, 427720), (3604, 389980), (3922, 358360), (4216, 333370), (4240, 331483), (4505, 311984), (4588, 306340), (4624, 303955), (5032, 279310), (5270, 266696), (5735, 245072), (5780, 243164), (6290, 223448), (6572, 213860), (7208, 194990), (7844, 179180), (8215, 171088), (8432, 166685), (8959, 156880), (9010, 155992), (9176, 153170), (9805, 143344), (10064, 139655), (10540, 133348), (10693, 131440), (11470, 122536), (11560, 121582), (12580, 111724), (13144, 106930), (14416, 97495), (15317, 91760), (15688, 89590), (16430, 85544), (17918, 78440), (18020, 77996), (18352, 76585), (19499, 72080), (19610, 71672), (21080, 66674), (21386, 65720), (22940, 61268), (23120, 60791), (25160, 55862), (26288, 53465), (27931, 50320), (30634, 45880), (31376, 44795), (32860, 42772), (33337, 42160), (35836, 39220), (36040, 38998)]