13287940

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2647}}^1$

素因数の和:2907

約数の個数: 24

約数和(自身を含む): 28026432

約数和(自身を除く): 14738492

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 2647, 5020, 5294, 10588, 13235, 26470, 52940, 664397, 1328794, 2657588, 3321985, 6643970, 13287940]

約数ペア:

[(1, 13287940), (2, 6643970), (4, 3321985), (5, 2657588), (10, 1328794), (20, 664397), (251, 52940), (502, 26470), (1004, 13235), (1255, 10588), (2510, 5294), (2647, 5020)]