20856540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{347609}}^1$

素因数の和:347621

約数の個数: 24

約数和(自身を含む): 58398480

約数和(自身を除く): 37541940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 347609, 695218, 1042827, 1390436, 1738045, 2085654, 3476090, 4171308, 5214135, 6952180, 10428270, 20856540]

約数ペア:

[(1, 20856540), (2, 10428270), (3, 6952180), (4, 5214135), (5, 4171308), (6, 3476090), (10, 2085654), (12, 1738045), (15, 1390436), (20, 1042827), (30, 695218), (60, 347609)]