20905140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{348419}}^1$

素因数の和:348431

約数の個数: 24

約数和(自身を含む): 58534560

約数和(自身を除く): 37629420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 348419, 696838, 1045257, 1393676, 1742095, 2090514, 3484190, 4181028, 5226285, 6968380, 10452570, 20905140]

約数ペア:

[(1, 20905140), (2, 10452570), (3, 6968380), (4, 5226285), (5, 4181028), (6, 3484190), (10, 2090514), (12, 1742095), (15, 1393676), (20, 1045257), (30, 696838), (60, 348419)]