212760620

素因数分解:

$2^2\times 5^1\times {\mathrm{10638031}}^1$

素因数の和:10638040

約数の個数: 12

約数和(自身を含む): 446797344

約数和(自身を除く): 234036724

約数列:

[1, 2, 4, 5, 10, 20, 10638031, 21276062, 42552124, 53190155, 106380310, 212760620]

約数ペア:

[(1, 212760620), (2, 106380310), (4, 53190155), (5, 42552124), (10, 21276062), (20, 10638031)]