28202260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 61330752

約数和(自身を除く): 33128492

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 163, 164, 205, 211, 326, 410, 422, 652, 815, 820, 844, 1055, 1630, 2110, 3260, 4220, 6683, 8651, 13366, 17302, 26732, 33415, 34393, 34604, 43255, 66830, 68786, 86510, 133660, 137572, 171965, 173020, 343930, 687860, 1410113, 2820226, 5640452, 7050565, 14101130, 28202260]

約数ペア:

[(1, 28202260), (2, 14101130), (4, 7050565), (5, 5640452), (10, 2820226), (20, 1410113), (41, 687860), (82, 343930), (163, 173020), (164, 171965), (205, 137572), (211, 133660), (326, 86510), (410, 68786), (422, 66830), (652, 43255), (815, 34604), (820, 34393), (844, 33415), (1055, 26732), (1630, 17302), (2110, 13366), (3260, 8651), (4220, 6683)]