15899808220

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{787}}^1\times {\mathrm{1571}}^1$

素因数の和:3010

約数の個数: 48

約数和(自身を含む): 33505331328

約数和(自身を除く): 17605523108

約数列:

[1, 2, 4, 5, 10, 20, 643, 787, 1286, 1571, 1574, 2572, 3142, 3148, 3215, 3935, 6284, 6430, 7855, 7870, 12860, 15710, 15740, 31420, 506041, 1010153, 1012082, 1236377, 2020306, 2024164, 2472754, 2530205, 4040612, 4945508, 5050765, 5060410, 6181885, 10101530, 10120820, 12363770, 20203060, 24727540, 794990411, 1589980822, 3179961644, 3974952055, 7949904110, 15899808220]

約数ペア:

[(1, 15899808220), (2, 7949904110), (4, 3974952055), (5, 3179961644), (10, 1589980822), (20, 794990411), (643, 24727540), (787, 20203060), (1286, 12363770), (1571, 10120820), (1574, 10101530), (2572, 6181885), (3142, 5060410), (3148, 5050765), (3215, 4945508), (3935, 4040612), (6284, 2530205), (6430, 2472754), (7855, 2024164), (7870, 2020306), (12860, 1236377), (15710, 1012082), (15740, 1010153), (31420, 506041)]