218156720

素因数分解:

$2^4\times 5^1\times {\mathrm{2726959}}^1$

素因数の和:2726972

約数の個数: 20

約数和(自身を含む): 507214560

約数和(自身を除く): 289057840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2726959, 5453918, 10907836, 13634795, 21815672, 27269590, 43631344, 54539180, 109078360, 218156720]

約数ペア:

[(1, 218156720), (2, 109078360), (4, 54539180), (5, 43631344), (8, 27269590), (10, 21815672), (16, 13634795), (20, 10907836), (40, 5453918), (80, 2726959)]