84174920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67883}}^1$

素因数の和:67925

約数の個数: 32

約数和(自身を含む): 195505920

約数和(自身を除く): 111331000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 67883, 135766, 271532, 339415, 543064, 678830, 1357660, 2104373, 2715320, 4208746, 8417492, 10521865, 16834984, 21043730, 42087460, 84174920]

約数ペア:

[(1, 84174920), (2, 42087460), (4, 21043730), (5, 16834984), (8, 10521865), (10, 8417492), (20, 4208746), (31, 2715320), (40, 2104373), (62, 1357660), (124, 678830), (155, 543064), (248, 339415), (310, 271532), (620, 135766), (1240, 67883)]