20120123128

素因数分解:

$2^3\times 7^1\times {\mathrm{359287913}}^1$

素因数の和:359287926

約数の個数: 16

約数和(自身を含む): 43114549680

約数和(自身を除く): 22994426552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 359287913, 718575826, 1437151652, 2515015391, 2874303304, 5030030782, 10060061564, 20120123128]

約数ペア:

[(1, 20120123128), (2, 10060061564), (4, 5030030782), (7, 2874303304), (8, 2515015391), (14, 1437151652), (28, 718575826), (56, 359287913)]