15678054925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{2351}}^1$

素因数の和:2479

約数の個数: 72

約数和(自身を含む): 22563055872

約数和(自身を除く): 6885000947

約数列:

[1, 5, 13, 17, 25, 65, 71, 85, 221, 289, 325, 355, 425, 923, 1105, 1207, 1445, 1775, 2351, 3757, 4615, 5525, 6035, 7225, 11755, 15691, 18785, 20519, 23075, 30175, 30563, 39967, 58775, 78455, 93925, 102595, 152815, 166921, 199835, 266747, 392275, 512975, 519571, 679439, 764075, 834605, 999175, 1333735, 2169973, 2597855, 2837657, 3397195, 4173025, 6668675, 8832707, 10849865, 12989275, 14188285, 16985975, 36889541, 44163535, 48240169, 54249325, 70941425, 184447705, 220817675, 241200845, 627122197, 922238525, 1206004225, 3135610985, 15678054925]

約数ペア:

[(1, 15678054925), (5, 3135610985), (13, 1206004225), (17, 922238525), (25, 627122197), (65, 241200845), (71, 220817675), (85, 184447705), (221, 70941425), (289, 54249325), (325, 48240169), (355, 44163535), (425, 36889541), (923, 16985975), (1105, 14188285), (1207, 12989275), (1445, 10849865), (1775, 8832707), (2351, 6668675), (3757, 4173025), (4615, 3397195), (5525, 2837657), (6035, 2597855), (7225, 2169973), (11755, 1333735), (15691, 999175), (18785, 834605), (20519, 764075), (23075, 679439), (30175, 519571), (30563, 512975), (39967, 392275), (58775, 266747), (78455, 199835), (93925, 166921), (102595, 152815)]