13031120

素因数分解:

$2^4\times 5^1\times {\mathrm{162889}}^1$

素因数の和:162902

約数の個数: 20

約数和(自身を含む): 30297540

約数和(自身を除く): 17266420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 162889, 325778, 651556, 814445, 1303112, 1628890, 2606224, 3257780, 6515560, 13031120]

約数ペア:

[(1, 13031120), (2, 6515560), (4, 3257780), (5, 2606224), (8, 1628890), (10, 1303112), (16, 814445), (20, 651556), (40, 325778), (80, 162889)]