2638963480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{3187}}^1$

素因数の和:3488

約数の個数: 64

約数和(自身を含む): 6023024640

約数和(自身を除く): 3384061160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 163, 254, 326, 508, 635, 652, 815, 1016, 1270, 1304, 1630, 2540, 3187, 3260, 5080, 6374, 6520, 12748, 15935, 20701, 25496, 31870, 41402, 63740, 82804, 103505, 127480, 165608, 207010, 404749, 414020, 519481, 809498, 828040, 1038962, 1618996, 2023745, 2077924, 2597405, 3237992, 4047490, 4155848, 5194810, 8094980, 10389620, 16189960, 20779240, 65974087, 131948174, 263896348, 329870435, 527792696, 659740870, 1319481740, 2638963480]

約数ペア:

[(1, 2638963480), (2, 1319481740), (4, 659740870), (5, 527792696), (8, 329870435), (10, 263896348), (20, 131948174), (40, 65974087), (127, 20779240), (163, 16189960), (254, 10389620), (326, 8094980), (508, 5194810), (635, 4155848), (652, 4047490), (815, 3237992), (1016, 2597405), (1270, 2077924), (1304, 2023745), (1630, 1618996), (2540, 1038962), (3187, 828040), (3260, 809498), (5080, 519481), (6374, 414020), (6520, 404749), (12748, 207010), (15935, 165608), (20701, 127480), (25496, 103505), (31870, 82804), (41402, 63740)]