156920855

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{977}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 232654464

約数和(自身を除く): 75733609

約数列:

[1, 5, 7, 13, 35, 65, 91, 353, 455, 977, 1765, 2471, 4589, 4885, 6839, 12355, 12701, 22945, 32123, 34195, 63505, 88907, 160615, 344881, 444535, 1724405, 2414167, 4483453, 12070835, 22417265, 31384171, 156920855]

約数ペア:

[(1, 156920855), (5, 31384171), (7, 22417265), (13, 12070835), (35, 4483453), (65, 2414167), (91, 1724405), (353, 444535), (455, 344881), (977, 160615), (1765, 88907), (2471, 63505), (4589, 34195), (4885, 32123), (6839, 22945), (12355, 12701)]