218522020

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{69593}}^1$

素因数の和:69759

約数の個数: 24

約数和(自身を含む): 461825784

約数和(自身を除く): 243303764

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 69593, 139186, 278372, 347965, 695930, 1391860, 10926101, 21852202, 43704404, 54630505, 109261010, 218522020]

約数ペア:

[(1, 218522020), (2, 109261010), (4, 54630505), (5, 43704404), (10, 21852202), (20, 10926101), (157, 1391860), (314, 695930), (628, 347965), (785, 278372), (1570, 139186), (3140, 69593)]