18026920

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1663}}^1$

素因数の和:1945

約数の個数: 32

約数和(自身を含む): 40734720

約数和(自身を除く): 22707800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 1663, 2168, 2710, 3326, 5420, 6652, 8315, 10840, 13304, 16630, 33260, 66520, 450673, 901346, 1802692, 2253365, 3605384, 4506730, 9013460, 18026920]

約数ペア:

[(1, 18026920), (2, 9013460), (4, 4506730), (5, 3605384), (8, 2253365), (10, 1802692), (20, 901346), (40, 450673), (271, 66520), (542, 33260), (1084, 16630), (1355, 13304), (1663, 10840), (2168, 8315), (2710, 6652), (3326, 5420)]