19882460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76471}}^1$

素因数の和:76493

約数の個数: 24

約数和(自身を含む): 44965536

約数和(自身を除く): 25083076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76471, 152942, 305884, 382355, 764710, 994123, 1529420, 1988246, 3976492, 4970615, 9941230, 19882460]

約数ペア:

[(1, 19882460), (2, 9941230), (4, 4970615), (5, 3976492), (10, 1988246), (13, 1529420), (20, 994123), (26, 764710), (52, 382355), (65, 305884), (130, 152942), (260, 76471)]