221520100

素因数分解:

$2^2\times 5^2\times {\mathrm{2215201}}^1$

素因数の和:2215215

約数の個数: 18

約数和(自身を含む): 480698834

約数和(自身を除く): 259178734

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2215201, 4430402, 8860804, 11076005, 22152010, 44304020, 55380025, 110760050, 221520100]

約数ペア:

[(1, 221520100), (2, 110760050), (4, 55380025), (5, 44304020), (10, 22152010), (20, 11076005), (25, 8860804), (50, 4430402), (100, 2215201)]