20902830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53597}}^1$

素因数の和:53620

約数の個数: 32

約数和(自身を含む): 54026784

約数和(自身を除く): 33123954

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53597, 107194, 160791, 267985, 321582, 535970, 696761, 803955, 1393522, 1607910, 2090283, 3483805, 4180566, 6967610, 10451415, 20902830]

約数ペア:

[(1, 20902830), (2, 10451415), (3, 6967610), (5, 4180566), (6, 3483805), (10, 2090283), (13, 1607910), (15, 1393522), (26, 803955), (30, 696761), (39, 535970), (65, 321582), (78, 267985), (130, 160791), (195, 107194), (390, 53597)]