263241320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{1063}}^1$

素因数の和:1266

約数の個数: 64

約数和(自身を含む): 611331840

約数和(自身を除く): 348090520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 151, 164, 205, 302, 328, 410, 604, 755, 820, 1063, 1208, 1510, 1640, 2126, 3020, 4252, 5315, 6040, 6191, 8504, 10630, 12382, 21260, 24764, 30955, 42520, 43583, 49528, 61910, 87166, 123820, 160513, 174332, 217915, 247640, 321026, 348664, 435830, 642052, 802565, 871660, 1284104, 1605130, 1743320, 3210260, 6420520, 6581033, 13162066, 26324132, 32905165, 52648264, 65810330, 131620660, 263241320]

約数ペア:

[(1, 263241320), (2, 131620660), (4, 65810330), (5, 52648264), (8, 32905165), (10, 26324132), (20, 13162066), (40, 6581033), (41, 6420520), (82, 3210260), (151, 1743320), (164, 1605130), (205, 1284104), (302, 871660), (328, 802565), (410, 642052), (604, 435830), (755, 348664), (820, 321026), (1063, 247640), (1208, 217915), (1510, 174332), (1640, 160513), (2126, 123820), (3020, 87166), (4252, 61910), (5315, 49528), (6040, 43583), (6191, 42520), (8504, 30955), (10630, 24764), (12382, 21260)]