20067980

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1621}}^1$

素因数の和:2249

約数の個数: 24

約数和(自身を含む): 42236880

約数和(自身を除く): 22168900

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 1621, 2476, 3095, 3242, 6190, 6484, 8105, 12380, 16210, 32420, 1003399, 2006798, 4013596, 5016995, 10033990, 20067980]

約数ペア:

[(1, 20067980), (2, 10033990), (4, 5016995), (5, 4013596), (10, 2006798), (20, 1003399), (619, 32420), (1238, 16210), (1621, 12380), (2476, 8105), (3095, 6484), (3242, 6190)]