8863640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3121}}^1$

素因数の和:3203

約数の個数: 32

約数和(自身を含む): 20230560

約数和(自身を除く): 11366920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 3121, 6242, 12484, 15605, 24968, 31210, 62420, 124840, 221591, 443182, 886364, 1107955, 1772728, 2215910, 4431820, 8863640]

約数ペア:

[(1, 8863640), (2, 4431820), (4, 2215910), (5, 1772728), (8, 1107955), (10, 886364), (20, 443182), (40, 221591), (71, 124840), (142, 62420), (284, 31210), (355, 24968), (568, 15605), (710, 12484), (1420, 6242), (2840, 3121)]