25978420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2437}}^1$

素因数の和:2500

約数の個数: 48

約数和(自身を含む): 60208848

約数和(自身を除く): 34230428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2437, 2665, 4874, 5330, 9748, 10660, 12185, 24370, 31681, 48740, 63362, 99917, 126724, 158405, 199834, 316810, 399668, 499585, 633620, 999170, 1298921, 1998340, 2597842, 5195684, 6494605, 12989210, 25978420]

約数ペア:

[(1, 25978420), (2, 12989210), (4, 6494605), (5, 5195684), (10, 2597842), (13, 1998340), (20, 1298921), (26, 999170), (41, 633620), (52, 499585), (65, 399668), (82, 316810), (130, 199834), (164, 158405), (205, 126724), (260, 99917), (410, 63362), (533, 48740), (820, 31681), (1066, 24370), (2132, 12185), (2437, 10660), (2665, 9748), (4874, 5330)]