161002840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{129841}}^1$

素因数の和:129883

約数の個数: 32

約数和(自身を含む): 373944960

約数和(自身を除く): 212942120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 129841, 259682, 519364, 649205, 1038728, 1298410, 2596820, 4025071, 5193640, 8050142, 16100284, 20125355, 32200568, 40250710, 80501420, 161002840]

約数ペア:

[(1, 161002840), (2, 80501420), (4, 40250710), (5, 32200568), (8, 20125355), (10, 16100284), (20, 8050142), (31, 5193640), (40, 4025071), (62, 2596820), (124, 1298410), (155, 1038728), (248, 649205), (310, 519364), (620, 259682), (1240, 129841)]