209121608

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{181}}^1\times {\mathrm{1039}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 397488000

約数和(自身を除く): 188366392

約数列:

[1, 2, 4, 8, 139, 181, 278, 362, 556, 724, 1039, 1112, 1448, 2078, 4156, 8312, 25159, 50318, 100636, 144421, 188059, 201272, 288842, 376118, 577684, 752236, 1155368, 1504472, 26140201, 52280402, 104560804, 209121608]

約数ペア:

[(1, 209121608), (2, 104560804), (4, 52280402), (8, 26140201), (139, 1504472), (181, 1155368), (278, 752236), (362, 577684), (556, 376118), (724, 288842), (1039, 201272), (1112, 188059), (1448, 144421), (2078, 100636), (4156, 50318), (8312, 25159)]