128468655

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{661}}^1$

素因数の和:1296

約数の個数: 48

約数和(自身を含む): 255288384

約数和(自身を除く): 126819729

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 617, 661, 1851, 1983, 3085, 3305, 4319, 4627, 5553, 5949, 9255, 9915, 12957, 13881, 21595, 23135, 27765, 29745, 38871, 41643, 64785, 69405, 194355, 208215, 407837, 1223511, 2039185, 2854859, 3670533, 6117555, 8564577, 14274295, 18352665, 25693731, 42822885, 128468655]

約数ペア:

[(1, 128468655), (3, 42822885), (5, 25693731), (7, 18352665), (9, 14274295), (15, 8564577), (21, 6117555), (35, 3670533), (45, 2854859), (63, 2039185), (105, 1223511), (315, 407837), (617, 208215), (661, 194355), (1851, 69405), (1983, 64785), (3085, 41643), (3305, 38871), (4319, 29745), (4627, 27765), (5553, 23135), (5949, 21595), (9255, 13881), (9915, 12957)]