20000984

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1631

約数の個数: 32

約数和(自身を含む): 39709440

約数和(自身を除く): 19708456

約数列:

[1, 2, 4, 8, 23, 46, 71, 92, 142, 184, 284, 568, 1531, 1633, 3062, 3266, 6124, 6532, 12248, 13064, 35213, 70426, 108701, 140852, 217402, 281704, 434804, 869608, 2500123, 5000246, 10000492, 20000984]

約数ペア:

[(1, 20000984), (2, 10000492), (4, 5000246), (8, 2500123), (23, 869608), (46, 434804), (71, 281704), (92, 217402), (142, 140852), (184, 108701), (284, 70426), (568, 35213), (1531, 13064), (1633, 12248), (3062, 6532), (3266, 6124)]