65172575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 91723296

約数和(自身を除く): 26550721

約数列:

[1, 5, 13, 25, 41, 65, 67, 73, 205, 325, 335, 365, 533, 871, 949, 1025, 1675, 1825, 2665, 2747, 2993, 4355, 4745, 4891, 13325, 13735, 14965, 21775, 23725, 24455, 35711, 38909, 63583, 68675, 74825, 122275, 178555, 194545, 200531, 317915, 892775, 972725, 1002655, 1589575, 2606903, 5013275, 13034515, 65172575]

約数ペア:

[(1, 65172575), (5, 13034515), (13, 5013275), (25, 2606903), (41, 1589575), (65, 1002655), (67, 972725), (73, 892775), (205, 317915), (325, 200531), (335, 194545), (365, 178555), (533, 122275), (871, 74825), (949, 68675), (1025, 63583), (1675, 38909), (1825, 35711), (2665, 24455), (2747, 23725), (2993, 21775), (4355, 14965), (4745, 13735), (4891, 13325)]