12931120

素因数分解:

$2^4\times 5^1\times {\mathrm{161639}}^1$

素因数の和:161652

約数の個数: 20

約数和(自身を含む): 30065040

約数和(自身を除く): 17133920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161639, 323278, 646556, 808195, 1293112, 1616390, 2586224, 3232780, 6465560, 12931120]

約数ペア:

[(1, 12931120), (2, 6465560), (4, 3232780), (5, 2586224), (8, 1616390), (10, 1293112), (16, 808195), (20, 646556), (40, 323278), (80, 161639)]