161001980

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{7573}}^1$

素因数の和:8645

約数の個数: 24

約数和(自身を含む): 338466912

約数和(自身を除く): 177464932

約数列:

[1, 2, 4, 5, 10, 20, 1063, 2126, 4252, 5315, 7573, 10630, 15146, 21260, 30292, 37865, 75730, 151460, 8050099, 16100198, 32200396, 40250495, 80500990, 161001980]

約数ペア:

[(1, 161001980), (2, 80500990), (4, 40250495), (5, 32200396), (10, 16100198), (20, 8050099), (1063, 151460), (2126, 75730), (4252, 37865), (5315, 30292), (7573, 21260), (10630, 15146)]