16870820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27211}}^1$

素因数の和:27251

約数の個数: 24

約数和(自身を含む): 36572928

約数和(自身を除く): 19702108

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 27211, 54422, 108844, 136055, 272110, 544220, 843541, 1687082, 3374164, 4217705, 8435410, 16870820]

約数ペア:

[(1, 16870820), (2, 8435410), (4, 4217705), (5, 3374164), (10, 1687082), (20, 843541), (31, 544220), (62, 272110), (124, 136055), (155, 108844), (310, 54422), (620, 27211)]