968980025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1609}}^1$

素因数の和:1758

約数の個数: 48

約数和(自身を含む): 1383505200

約数和(自身を除く): 414525175

約数列:

[1, 5, 13, 17, 25, 65, 85, 109, 221, 325, 425, 545, 1105, 1417, 1609, 1853, 2725, 5525, 7085, 8045, 9265, 20917, 24089, 27353, 35425, 40225, 46325, 104585, 120445, 136765, 175381, 355589, 522925, 602225, 683825, 876905, 1777945, 2279953, 2981477, 4384525, 8889725, 11399765, 14907385, 38759201, 56998825, 74536925, 193796005, 968980025]

約数ペア:

[(1, 968980025), (5, 193796005), (13, 74536925), (17, 56998825), (25, 38759201), (65, 14907385), (85, 11399765), (109, 8889725), (221, 4384525), (325, 2981477), (425, 2279953), (545, 1777945), (1105, 876905), (1417, 683825), (1609, 602225), (1853, 522925), (2725, 355589), (5525, 175381), (7085, 136765), (8045, 120445), (9265, 104585), (20917, 46325), (24089, 40225), (27353, 35425)]