20180040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{797}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 60903360

約数和(自身を除く): 40723320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211, 422, 633, 797, 844, 1055, 1266, 1594, 1688, 2110, 2391, 2532, 3165, 3188, 3985, 4220, 4782, 5064, 6330, 6376, 7970, 8440, 9564, 11955, 12660, 15940, 19128, 23910, 25320, 31880, 47820, 95640, 168167, 336334, 504501, 672668, 840835, 1009002, 1345336, 1681670, 2018004, 2522505, 3363340, 4036008, 5045010, 6726680, 10090020, 20180040]

約数ペア:

[(1, 20180040), (2, 10090020), (3, 6726680), (4, 5045010), (5, 4036008), (6, 3363340), (8, 2522505), (10, 2018004), (12, 1681670), (15, 1345336), (20, 1009002), (24, 840835), (30, 672668), (40, 504501), (60, 336334), (120, 168167), (211, 95640), (422, 47820), (633, 31880), (797, 25320), (844, 23910), (1055, 19128), (1266, 15940), (1594, 12660), (1688, 11955), (2110, 9564), (2391, 8440), (2532, 7970), (3165, 6376), (3188, 6330), (3985, 5064), (4220, 4782)]