1998380

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{613}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 4229232

約数和(自身を除く): 2230852

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 613, 652, 815, 1226, 1630, 2452, 3065, 3260, 6130, 12260, 99919, 199838, 399676, 499595, 999190, 1998380]

約数ペア:

[(1, 1998380), (2, 999190), (4, 499595), (5, 399676), (10, 199838), (20, 99919), (163, 12260), (326, 6130), (613, 3260), (652, 3065), (815, 2452), (1226, 1630)]