20387530

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 17248310

約数列:

[1, 2, 5, 10, 79, 131, 158, 197, 262, 394, 395, 655, 790, 985, 1310, 1970, 10349, 15563, 20698, 25807, 31126, 51614, 51745, 77815, 103490, 129035, 155630, 258070, 2038753, 4077506, 10193765, 20387530]

約数ペア:

[(1, 20387530), (2, 10193765), (5, 4077506), (10, 2038753), (79, 258070), (131, 155630), (158, 129035), (197, 103490), (262, 77815), (394, 51745), (395, 51614), (655, 31126), (790, 25807), (985, 20698), (1310, 15563), (1970, 10349)]