20066440

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2099}}^1$

素因数の和:2349

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 25293560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2099, 2390, 4198, 4780, 8396, 9560, 10495, 16792, 20990, 41980, 83960, 501661, 1003322, 2006644, 2508305, 4013288, 5016610, 10033220, 20066440]

約数ペア:

[(1, 20066440), (2, 10033220), (4, 5016610), (5, 4013288), (8, 2508305), (10, 2006644), (20, 1003322), (40, 501661), (239, 83960), (478, 41980), (956, 20990), (1195, 16792), (1912, 10495), (2099, 9560), (2390, 8396), (4198, 4780)]