19397360

素因数分解:

$2^4\times 5^1\times {\mathrm{242467}}^1$

素因数の和:242480

約数の個数: 20

約数和(自身を含む): 45099048

約数和(自身を除く): 25701688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242467, 484934, 969868, 1212335, 1939736, 2424670, 3879472, 4849340, 9698680, 19397360]

約数ペア:

[(1, 19397360), (2, 9698680), (4, 4849340), (5, 3879472), (8, 2424670), (10, 1939736), (16, 1212335), (20, 969868), (40, 484934), (80, 242467)]