252172820

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{69661}}^1$

素因数の和:69851

約数の個数: 24

約数和(自身を含む): 532496328

約数和(自身を除く): 280323508

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 69661, 139322, 278644, 348305, 696610, 1393220, 12608641, 25217282, 50434564, 63043205, 126086410, 252172820]

約数ペア:

[(1, 252172820), (2, 126086410), (4, 63043205), (5, 50434564), (10, 25217282), (20, 12608641), (181, 1393220), (362, 696610), (724, 348305), (905, 278644), (1810, 139322), (3620, 69661)]