8636920

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{821}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 19530720

約数和(自身を除く): 10893800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 821, 1052, 1315, 1642, 2104, 2630, 3284, 4105, 5260, 6568, 8210, 10520, 16420, 32840, 215923, 431846, 863692, 1079615, 1727384, 2159230, 4318460, 8636920]

約数ペア:

[(1, 8636920), (2, 4318460), (4, 2159230), (5, 1727384), (8, 1079615), (10, 863692), (20, 431846), (40, 215923), (263, 32840), (526, 16420), (821, 10520), (1052, 8210), (1315, 6568), (1642, 5260), (2104, 4105), (2630, 3284)]