80090380

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9791}}^1$

素因数の和:10209

約数の個数: 24

約数和(自身を含む): 168618240

約数和(自身を除く): 88527860

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 9791, 19582, 39164, 48955, 97910, 195820, 4004519, 8009038, 16018076, 20022595, 40045190, 80090380]

約数ペア:

[(1, 80090380), (2, 40045190), (4, 20022595), (5, 16018076), (10, 8009038), (20, 4004519), (409, 195820), (818, 97910), (1636, 48955), (2045, 39164), (4090, 19582), (8180, 9791)]