20840430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53437}}^1$

素因数の和:53460

約数の個数: 32

約数和(自身を含む): 53865504

約数和(自身を除く): 33025074

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53437, 106874, 160311, 267185, 320622, 534370, 694681, 801555, 1389362, 1603110, 2084043, 3473405, 4168086, 6946810, 10420215, 20840430]

約数ペア:

[(1, 20840430), (2, 10420215), (3, 6946810), (5, 4168086), (6, 3473405), (10, 2084043), (13, 1603110), (15, 1389362), (26, 801555), (30, 694681), (39, 534370), (65, 320622), (78, 267185), (130, 160311), (195, 106874), (390, 53437)]