205655240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:140

約数の個数: 256

約数和(自身を含む): 608256000

約数和(自身を除く): 402600760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 29, 31, 35, 38, 40, 43, 56, 58, 62, 70, 76, 86, 95, 116, 124, 133, 140, 145, 152, 155, 172, 190, 203, 215, 217, 232, 248, 266, 280, 290, 301, 310, 344, 380, 406, 430, 434, 532, 551, 580, 589, 602, 620, 665, 760, 812, 817, 860, 868, 899, 1015, 1064, 1085, 1102, 1160, 1178, 1204, 1240, 1247, 1330, 1333, 1505, 1624, 1634, 1720, 1736, 1798, 2030, 2170, 2204, 2356, 2408, 2494, 2660, 2666, 2755, 2945, 3010, 3268, 3596, 3857, 4060, 4085, 4123, 4340, 4408, 4495, 4712, 4988, 5320, 5332, 5510, 5719, 5890, 6020, 6235, 6293, 6536, 6665, 7192, 7714, 8120, 8170, 8246, 8680, 8729, 8990, 9331, 9976, 10664, 11020, 11438, 11780, 12040, 12470, 12586, 13330, 15428, 16340, 16492, 17081, 17458, 17980, 18662, 19285, 20615, 22040, 22876, 23560, 23693, 24940, 25172, 25327, 26660, 28595, 30856, 31465, 32680, 32984, 34162, 34916, 35960, 37324, 38570, 38657, 41230, 43645, 45752, 46655, 47386, 49880, 50344, 50654, 53320, 57190, 62930, 68324, 69832, 74648, 77140, 77314, 82460, 85405, 87290, 93310, 94772, 101308, 114380, 118465, 119567, 125860, 126635, 136648, 154280, 154628, 164920, 165851, 170810, 174580, 177289, 186620, 189544, 193285, 202616, 228760, 236930, 239134, 251720, 253270, 270599, 309256, 331702, 341620, 349160, 354578, 373240, 386570, 473860, 478268, 506540, 541198, 597835, 663404, 683240, 709156, 734483, 773140, 829255, 886445, 947720, 956536, 1013080, 1082396, 1195670, 1326808, 1352995, 1418312, 1468966, 1546280, 1658510, 1772890, 2164792, 2391340, 2705990, 2937932, 3317020, 3545780, 3672415, 4782680, 5141381, 5411980, 5875864, 6634040, 7091560, 7344830, 10282762, 10823960, 14689660, 20565524, 25706905, 29379320, 41131048, 51413810, 102827620, 205655240]

約数ペア:

[(1, 205655240), (2, 102827620), (4, 51413810), (5, 41131048), (7, 29379320), (8, 25706905), (10, 20565524), (14, 14689660), (19, 10823960), (20, 10282762), (28, 7344830), (29, 7091560), (31, 6634040), (35, 5875864), (38, 5411980), (40, 5141381), (43, 4782680), (56, 3672415), (58, 3545780), (62, 3317020), (70, 2937932), (76, 2705990), (86, 2391340), (95, 2164792), (116, 1772890), (124, 1658510), (133, 1546280), (140, 1468966), (145, 1418312), (152, 1352995), (155, 1326808), (172, 1195670), (190, 1082396), (203, 1013080), (215, 956536), (217, 947720), (232, 886445), (248, 829255), (266, 773140), (280, 734483), (290, 709156), (301, 683240), (310, 663404), (344, 597835), (380, 541198), (406, 506540), (430, 478268), (434, 473860), (532, 386570), (551, 373240), (580, 354578), (589, 349160), (602, 341620), (620, 331702), (665, 309256), (760, 270599), (812, 253270), (817, 251720), (860, 239134), (868, 236930), (899, 228760), (1015, 202616), (1064, 193285), (1085, 189544), (1102, 186620), (1160, 177289), (1178, 174580), (1204, 170810), (1240, 165851), (1247, 164920), (1330, 154628), (1333, 154280), (1505, 136648), (1624, 126635), (1634, 125860), (1720, 119567), (1736, 118465), (1798, 114380), (2030, 101308), (2170, 94772), (2204, 93310), (2356, 87290), (2408, 85405), (2494, 82460), (2660, 77314), (2666, 77140), (2755, 74648), (2945, 69832), (3010, 68324), (3268, 62930), (3596, 57190), (3857, 53320), (4060, 50654), (4085, 50344), (4123, 49880), (4340, 47386), (4408, 46655), (4495, 45752), (4712, 43645), (4988, 41230), (5320, 38657), (5332, 38570), (5510, 37324), (5719, 35960), (5890, 34916), (6020, 34162), (6235, 32984), (6293, 32680), (6536, 31465), (6665, 30856), (7192, 28595), (7714, 26660), (8120, 25327), (8170, 25172), (8246, 24940), (8680, 23693), (8729, 23560), (8990, 22876), (9331, 22040), (9976, 20615), (10664, 19285), (11020, 18662), (11438, 17980), (11780, 17458), (12040, 17081), (12470, 16492), (12586, 16340), (13330, 15428)]