15721550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1$

素因数の和:130

約数の個数: 72

約数和(自身を含む): 33732216

約数和(自身を除く): 18010666

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 67, 95, 130, 134, 190, 247, 325, 335, 361, 475, 494, 650, 670, 722, 871, 950, 1235, 1273, 1675, 1742, 1805, 2470, 2546, 3350, 3610, 4355, 4693, 6175, 6365, 8710, 9025, 9386, 12350, 12730, 16549, 18050, 21775, 23465, 24187, 31825, 33098, 43550, 46930, 48374, 63650, 82745, 117325, 120935, 165490, 234650, 241870, 314431, 413725, 604675, 628862, 827450, 1209350, 1572155, 3144310, 7860775, 15721550]

約数ペア:

[(1, 15721550), (2, 7860775), (5, 3144310), (10, 1572155), (13, 1209350), (19, 827450), (25, 628862), (26, 604675), (38, 413725), (50, 314431), (65, 241870), (67, 234650), (95, 165490), (130, 120935), (134, 117325), (190, 82745), (247, 63650), (325, 48374), (335, 46930), (361, 43550), (475, 33098), (494, 31825), (650, 24187), (670, 23465), (722, 21775), (871, 18050), (950, 16549), (1235, 12730), (1273, 12350), (1675, 9386), (1742, 9025), (1805, 8710), (2470, 6365), (2546, 6175), (3350, 4693), (3610, 4355)]