207227320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{571}}^1$

素因数の和:836

約数の個数: 64

約数和(自身を含む): 480205440

約数和(自身を除く): 272978120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 211, 215, 344, 422, 430, 571, 844, 860, 1055, 1142, 1688, 1720, 2110, 2284, 2855, 4220, 4568, 5710, 8440, 9073, 11420, 18146, 22840, 24553, 36292, 45365, 49106, 72584, 90730, 98212, 120481, 122765, 181460, 196424, 240962, 245530, 362920, 481924, 491060, 602405, 963848, 982120, 1204810, 2409620, 4819240, 5180683, 10361366, 20722732, 25903415, 41445464, 51806830, 103613660, 207227320]

約数ペア:

[(1, 207227320), (2, 103613660), (4, 51806830), (5, 41445464), (8, 25903415), (10, 20722732), (20, 10361366), (40, 5180683), (43, 4819240), (86, 2409620), (172, 1204810), (211, 982120), (215, 963848), (344, 602405), (422, 491060), (430, 481924), (571, 362920), (844, 245530), (860, 240962), (1055, 196424), (1142, 181460), (1688, 122765), (1720, 120481), (2110, 98212), (2284, 90730), (2855, 72584), (4220, 49106), (4568, 45365), (5710, 36292), (8440, 24553), (9073, 22840), (11420, 18146)]