18323240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 44876160

約数和(自身を除く): 26552920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 167, 211, 260, 334, 422, 520, 668, 835, 844, 1055, 1336, 1670, 1688, 2110, 2171, 2743, 3340, 4220, 4342, 5486, 6680, 8440, 8684, 10855, 10972, 13715, 17368, 21710, 21944, 27430, 35237, 43420, 54860, 70474, 86840, 109720, 140948, 176185, 281896, 352370, 458081, 704740, 916162, 1409480, 1832324, 2290405, 3664648, 4580810, 9161620, 18323240]

約数ペア:

[(1, 18323240), (2, 9161620), (4, 4580810), (5, 3664648), (8, 2290405), (10, 1832324), (13, 1409480), (20, 916162), (26, 704740), (40, 458081), (52, 352370), (65, 281896), (104, 176185), (130, 140948), (167, 109720), (211, 86840), (260, 70474), (334, 54860), (422, 43420), (520, 35237), (668, 27430), (835, 21944), (844, 21710), (1055, 17368), (1336, 13715), (1670, 10972), (1688, 10855), (2110, 8684), (2171, 8440), (2743, 6680), (3340, 5486), (4220, 4342)]