28163655

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1608

約数の個数: 48

約数和(自身を含む): 54302976

約数和(自身を除く): 26139321

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1209, 1395, 1553, 2015, 3627, 4659, 6045, 7765, 13977, 18135, 20189, 23295, 48143, 60567, 69885, 100945, 144429, 181701, 240715, 302835, 433287, 625859, 722145, 908505, 1877577, 2166435, 3129295, 5632731, 9387885, 28163655]

約数ペア:

[(1, 28163655), (3, 9387885), (5, 5632731), (9, 3129295), (13, 2166435), (15, 1877577), (31, 908505), (39, 722145), (45, 625859), (65, 433287), (93, 302835), (117, 240715), (155, 181701), (195, 144429), (279, 100945), (403, 69885), (465, 60567), (585, 48143), (1209, 23295), (1395, 20189), (1553, 18135), (2015, 13977), (3627, 7765), (4659, 6045)]