215680100

素因数分解:

$2^2\times 5^2\times {\mathrm{2156801}}^1$

素因数の和:2156815

約数の個数: 18

約数和(自身を含む): 468026034

約数和(自身を除く): 252345934

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2156801, 4313602, 8627204, 10784005, 21568010, 43136020, 53920025, 107840050, 215680100]

約数ペア:

[(1, 215680100), (2, 107840050), (4, 53920025), (5, 43136020), (10, 21568010), (20, 10784005), (25, 8627204), (50, 4313602), (100, 2156801)]