18407640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{727}}^1$

素因数の和:952

約数の個数: 64

約数和(自身を含む): 55560960

約数和(自身を除く): 37153320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211, 422, 633, 727, 844, 1055, 1266, 1454, 1688, 2110, 2181, 2532, 2908, 3165, 3635, 4220, 4362, 5064, 5816, 6330, 7270, 8440, 8724, 10905, 12660, 14540, 17448, 21810, 25320, 29080, 43620, 87240, 153397, 306794, 460191, 613588, 766985, 920382, 1227176, 1533970, 1840764, 2300955, 3067940, 3681528, 4601910, 6135880, 9203820, 18407640]

約数ペア:

[(1, 18407640), (2, 9203820), (3, 6135880), (4, 4601910), (5, 3681528), (6, 3067940), (8, 2300955), (10, 1840764), (12, 1533970), (15, 1227176), (20, 920382), (24, 766985), (30, 613588), (40, 460191), (60, 306794), (120, 153397), (211, 87240), (422, 43620), (633, 29080), (727, 25320), (844, 21810), (1055, 17448), (1266, 14540), (1454, 12660), (1688, 10905), (2110, 8724), (2181, 8440), (2532, 7270), (2908, 6330), (3165, 5816), (3635, 5064), (4220, 4362)]