19725590

素因数分解:

$2^1\times 5^1\times {\mathrm{881}}^1\times {\mathrm{2239}}^1$

素因数の和:3127

約数の個数: 16

約数和(自身を含む): 35562240

約数和(自身を除く): 15836650

約数列:

[1, 2, 5, 10, 881, 1762, 2239, 4405, 4478, 8810, 11195, 22390, 1972559, 3945118, 9862795, 19725590]

約数ペア:

[(1, 19725590), (2, 9862795), (5, 3945118), (10, 1972559), (881, 22390), (1762, 11195), (2239, 8810), (4405, 4478)]