64874875

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 91125216

約数和(自身を除く): 26250341

約数列:

[1, 5, 13, 25, 37, 65, 83, 125, 169, 185, 325, 415, 481, 845, 925, 1079, 1625, 2075, 2405, 3071, 4225, 4625, 5395, 6253, 10375, 12025, 14027, 15355, 21125, 26975, 31265, 39923, 60125, 70135, 76775, 134875, 156325, 199615, 350675, 383875, 518999, 781625, 998075, 1753375, 2594995, 4990375, 12974975, 64874875]

約数ペア:

[(1, 64874875), (5, 12974975), (13, 4990375), (25, 2594995), (37, 1753375), (65, 998075), (83, 781625), (125, 518999), (169, 383875), (185, 350675), (325, 199615), (415, 156325), (481, 134875), (845, 76775), (925, 70135), (1079, 60125), (1625, 39923), (2075, 31265), (2405, 26975), (3071, 21125), (4225, 15355), (4625, 14027), (5395, 12025), (6253, 10375)]