18880100

素因数分解:

$2^2\times 5^2\times {\mathrm{188801}}^1$

素因数の和:188815

約数の個数: 18

約数和(自身を含む): 40970034

約数和(自身を除く): 22089934

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 188801, 377602, 755204, 944005, 1888010, 3776020, 4720025, 9440050, 18880100]

約数ペア:

[(1, 18880100), (2, 9440050), (4, 4720025), (5, 3776020), (10, 1888010), (20, 944005), (25, 755204), (50, 377602), (100, 188801)]