640933440

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{751}}^1$

素因数の和:905

約数の個数: 224

約数和(自身を含む): 2347106304

約数和(自身を除く): 1706172864

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 127, 140, 160, 168, 192, 210, 224, 240, 254, 280, 320, 336, 381, 420, 448, 480, 508, 560, 635, 672, 751, 762, 840, 889, 960, 1016, 1120, 1270, 1344, 1502, 1524, 1680, 1778, 1905, 2032, 2240, 2253, 2540, 2667, 3004, 3048, 3360, 3556, 3755, 3810, 4064, 4445, 4506, 5080, 5257, 5334, 6008, 6096, 6720, 7112, 7510, 7620, 8128, 8890, 9012, 10160, 10514, 10668, 11265, 12016, 12192, 13335, 14224, 15020, 15240, 15771, 17780, 18024, 20320, 21028, 21336, 22530, 24032, 24384, 26285, 26670, 28448, 30040, 30480, 31542, 35560, 36048, 40640, 42056, 42672, 45060, 48064, 52570, 53340, 56896, 60080, 60960, 63084, 71120, 72096, 78855, 84112, 85344, 90120, 95377, 105140, 106680, 120160, 121920, 126168, 142240, 144192, 157710, 168224, 170688, 180240, 190754, 210280, 213360, 240320, 252336, 284480, 286131, 315420, 336448, 360480, 381508, 420560, 426720, 476885, 504672, 572262, 630840, 667639, 720960, 763016, 841120, 853440, 953770, 1009344, 1144524, 1261680, 1335278, 1430655, 1526032, 1682240, 1907540, 2002917, 2289048, 2523360, 2670556, 2861310, 3052064, 3338195, 3815080, 4005834, 4578096, 5046720, 5341112, 5722620, 6104128, 6676390, 7630160, 8011668, 9156192, 10014585, 10682224, 11445240, 13352780, 15260320, 16023336, 18312384, 20029170, 21364448, 22890480, 26705560, 30520640, 32046672, 40058340, 42728896, 45780960, 53411120, 64093344, 80116680, 91561920, 106822240, 128186688, 160233360, 213644480, 320466720, 640933440]

約数ペア:

[(1, 640933440), (2, 320466720), (3, 213644480), (4, 160233360), (5, 128186688), (6, 106822240), (7, 91561920), (8, 80116680), (10, 64093344), (12, 53411120), (14, 45780960), (15, 42728896), (16, 40058340), (20, 32046672), (21, 30520640), (24, 26705560), (28, 22890480), (30, 21364448), (32, 20029170), (35, 18312384), (40, 16023336), (42, 15260320), (48, 13352780), (56, 11445240), (60, 10682224), (64, 10014585), (70, 9156192), (80, 8011668), (84, 7630160), (96, 6676390), (105, 6104128), (112, 5722620), (120, 5341112), (127, 5046720), (140, 4578096), (160, 4005834), (168, 3815080), (192, 3338195), (210, 3052064), (224, 2861310), (240, 2670556), (254, 2523360), (280, 2289048), (320, 2002917), (336, 1907540), (381, 1682240), (420, 1526032), (448, 1430655), (480, 1335278), (508, 1261680), (560, 1144524), (635, 1009344), (672, 953770), (751, 853440), (762, 841120), (840, 763016), (889, 720960), (960, 667639), (1016, 630840), (1120, 572262), (1270, 504672), (1344, 476885), (1502, 426720), (1524, 420560), (1680, 381508), (1778, 360480), (1905, 336448), (2032, 315420), (2240, 286131), (2253, 284480), (2540, 252336), (2667, 240320), (3004, 213360), (3048, 210280), (3360, 190754), (3556, 180240), (3755, 170688), (3810, 168224), (4064, 157710), (4445, 144192), (4506, 142240), (5080, 126168), (5257, 121920), (5334, 120160), (6008, 106680), (6096, 105140), (6720, 95377), (7112, 90120), (7510, 85344), (7620, 84112), (8128, 78855), (8890, 72096), (9012, 71120), (10160, 63084), (10514, 60960), (10668, 60080), (11265, 56896), (12016, 53340), (12192, 52570), (13335, 48064), (14224, 45060), (15020, 42672), (15240, 42056), (15771, 40640), (17780, 36048), (18024, 35560), (20320, 31542), (21028, 30480), (21336, 30040), (22530, 28448), (24032, 26670), (24384, 26285)]