90814840

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{2081}}^1$

素因数の和:3183

約数の個数: 32

約数和(自身を含む): 204618960

約数和(自身を除く): 113804120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 2081, 2182, 4162, 4364, 5455, 8324, 8728, 10405, 10910, 16648, 20810, 21820, 41620, 43640, 83240, 2270371, 4540742, 9081484, 11351855, 18162968, 22703710, 45407420, 90814840]

約数ペア:

[(1, 90814840), (2, 45407420), (4, 22703710), (5, 18162968), (8, 11351855), (10, 9081484), (20, 4540742), (40, 2270371), (1091, 83240), (2081, 43640), (2182, 41620), (4162, 21820), (4364, 20810), (5455, 16648), (8324, 10910), (8728, 10405)]