157066820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^2\times {\mathrm{661}}^1$

素因数の和:888

約数の個数: 36

約数和(自身を含む): 333397764

約数和(自身を除く): 176330944

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 661, 1090, 1322, 2180, 2644, 3305, 6610, 11881, 13220, 23762, 47524, 59405, 72049, 118810, 144098, 237620, 288196, 360245, 720490, 1440980, 7853341, 15706682, 31413364, 39266705, 78533410, 157066820]

約数ペア:

[(1, 157066820), (2, 78533410), (4, 39266705), (5, 31413364), (10, 15706682), (20, 7853341), (109, 1440980), (218, 720490), (436, 360245), (545, 288196), (661, 237620), (1090, 144098), (1322, 118810), (2180, 72049), (2644, 59405), (3305, 47524), (6610, 23762), (11881, 13220)]