157680920

素因数分解:

$2^3\times 5^1\times {\mathrm{3942023}}^1$

素因数の和:3942034

約数の個数: 16

約数和(自身を含む): 354782160

約数和(自身を除く): 197101240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3942023, 7884046, 15768092, 19710115, 31536184, 39420230, 78840460, 157680920]

約数ペア:

[(1, 157680920), (2, 78840460), (4, 39420230), (5, 31536184), (8, 19710115), (10, 15768092), (20, 7884046), (40, 3942023)]