631820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4513}}^1$

素因数の和:4529

約数の個数: 24

約数和(自身を含む): 1516704

約数和(自身を除く): 884884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4513, 9026, 18052, 22565, 31591, 45130, 63182, 90260, 126364, 157955, 315910, 631820]

約数ペア:

[(1, 631820), (2, 315910), (4, 157955), (5, 126364), (7, 90260), (10, 63182), (14, 45130), (20, 31591), (28, 22565), (35, 18052), (70, 9026), (140, 4513)]