51204820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 109932480

約数和(自身を除く): 58727660

約数列:

[1, 2, 4, 5, 10, 20, 113, 139, 163, 226, 278, 326, 452, 556, 565, 652, 695, 815, 1130, 1390, 1630, 2260, 2780, 3260, 15707, 18419, 22657, 31414, 36838, 45314, 62828, 73676, 78535, 90628, 92095, 113285, 157070, 184190, 226570, 314140, 368380, 453140, 2560241, 5120482, 10240964, 12801205, 25602410, 51204820]

約数ペア:

[(1, 51204820), (2, 25602410), (4, 12801205), (5, 10240964), (10, 5120482), (20, 2560241), (113, 453140), (139, 368380), (163, 314140), (226, 226570), (278, 184190), (326, 157070), (452, 113285), (556, 92095), (565, 90628), (652, 78535), (695, 73676), (815, 62828), (1130, 45314), (1390, 36838), (1630, 31414), (2260, 22657), (2780, 18419), (3260, 15707)]