289772

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 591360

約数和(自身を除く): 301588

約数列:

[1, 2, 4, 7, 14, 28, 79, 131, 158, 262, 316, 524, 553, 917, 1106, 1834, 2212, 3668, 10349, 20698, 41396, 72443, 144886, 289772]

約数ペア:

[(1, 289772), (2, 144886), (4, 72443), (7, 41396), (14, 20698), (28, 10349), (79, 3668), (131, 2212), (158, 1834), (262, 1106), (316, 917), (524, 553)]