198349780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{319919}}^1$

素因数の和:319959

約数の個数: 24

約数和(自身を含む): 429972480

約数和(自身を除く): 231622700

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 319919, 639838, 1279676, 1599595, 3199190, 6398380, 9917489, 19834978, 39669956, 49587445, 99174890, 198349780]

約数ペア:

[(1, 198349780), (2, 99174890), (4, 49587445), (5, 39669956), (10, 19834978), (20, 9917489), (31, 6398380), (62, 3199190), (124, 1599595), (155, 1279676), (310, 639838), (620, 319919)]