20530370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9461}}^1$

素因数の和:9506

約数の個数: 32

約数和(自身を含む): 43600896

約数和(自身を除く): 23070526

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9461, 18922, 47305, 66227, 94610, 132454, 293291, 331135, 586582, 662270, 1466455, 2053037, 2932910, 4106074, 10265185, 20530370]

約数ペア:

[(1, 20530370), (2, 10265185), (5, 4106074), (7, 2932910), (10, 2053037), (14, 1466455), (31, 662270), (35, 586582), (62, 331135), (70, 293291), (155, 132454), (217, 94610), (310, 66227), (434, 47305), (1085, 18922), (2170, 9461)]