1969048575

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:507

約数の個数: 144

約数和(自身を含む): 4021930080

約数和(自身を除く): 2052881505

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 41, 45, 65, 75, 117, 123, 135, 169, 195, 205, 225, 325, 351, 369, 421, 507, 533, 585, 615, 675, 845, 975, 1025, 1107, 1263, 1521, 1599, 1755, 1845, 2105, 2535, 2665, 2925, 3075, 3789, 4225, 4563, 4797, 5473, 5535, 6315, 6929, 7605, 7995, 8775, 9225, 10525, 11367, 12675, 13325, 14391, 16419, 17261, 18945, 20787, 22815, 23985, 27365, 27675, 31575, 34645, 38025, 39975, 49257, 51783, 56835, 62361, 71149, 71955, 82095, 86305, 94725, 103935, 114075, 119925, 136825, 147771, 155349, 173225, 187083, 213447, 224393, 246285, 258915, 284175, 311805, 355745, 359775, 410475, 431525, 466047, 519675, 640341, 673179, 738855, 776745, 935415, 1067235, 1121965, 1231425, 1294575, 1559025, 1778725, 1921023, 2019537, 2330235, 2917109, 3201705, 3365895, 3694275, 3883725, 4677075, 5336175, 5609825, 6058611, 8751327, 9605115, 10097685, 11651175, 14585545, 16008525, 16829475, 26253981, 30293055, 43756635, 48025575, 50488425, 72927725, 78761943, 131269905, 151465275, 218783175, 393809715, 656349525, 1969048575]

約数ペア:

[(1, 1969048575), (3, 656349525), (5, 393809715), (9, 218783175), (13, 151465275), (15, 131269905), (25, 78761943), (27, 72927725), (39, 50488425), (41, 48025575), (45, 43756635), (65, 30293055), (75, 26253981), (117, 16829475), (123, 16008525), (135, 14585545), (169, 11651175), (195, 10097685), (205, 9605115), (225, 8751327), (325, 6058611), (351, 5609825), (369, 5336175), (421, 4677075), (507, 3883725), (533, 3694275), (585, 3365895), (615, 3201705), (675, 2917109), (845, 2330235), (975, 2019537), (1025, 1921023), (1107, 1778725), (1263, 1559025), (1521, 1294575), (1599, 1231425), (1755, 1121965), (1845, 1067235), (2105, 935415), (2535, 776745), (2665, 738855), (2925, 673179), (3075, 640341), (3789, 519675), (4225, 466047), (4563, 431525), (4797, 410475), (5473, 359775), (5535, 355745), (6315, 311805), (6929, 284175), (7605, 258915), (7995, 246285), (8775, 224393), (9225, 213447), (10525, 187083), (11367, 173225), (12675, 155349), (13325, 147771), (14391, 136825), (16419, 119925), (17261, 114075), (18945, 103935), (20787, 94725), (22815, 86305), (23985, 82095), (27365, 71955), (27675, 71149), (31575, 62361), (34645, 56835), (38025, 51783), (39975, 49257)]