19856740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32027}}^1$

素因数の和:32067

約数の個数: 24

約数和(自身を含む): 43045632

約数和(自身を除く): 23188892

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32027, 64054, 128108, 160135, 320270, 640540, 992837, 1985674, 3971348, 4964185, 9928370, 19856740]

約数ペア:

[(1, 19856740), (2, 9928370), (4, 4964185), (5, 3971348), (10, 1985674), (20, 992837), (31, 640540), (62, 320270), (124, 160135), (155, 128108), (310, 64054), (620, 32027)]