13120415

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 20030976

約数和(自身を除く): 6910561

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 371, 385, 583, 643, 1855, 2915, 3215, 4081, 4501, 7073, 20405, 22505, 34079, 35365, 49511, 170395, 238553, 247555, 374869, 1192765, 1874345, 2624083, 13120415]

約数ペア:

[(1, 13120415), (5, 2624083), (7, 1874345), (11, 1192765), (35, 374869), (53, 247555), (55, 238553), (77, 170395), (265, 49511), (371, 35365), (385, 34079), (583, 22505), (643, 20405), (1855, 7073), (2915, 4501), (3215, 4081)]