128169910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{16411}}^1$

素因数の和:16500

約数の個数: 32

約数和(自身を含む): 255239424

約数和(自身を除く): 127069514

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 3905, 7810, 16411, 32822, 82055, 164110, 180521, 361042, 902605, 1165181, 1805210, 2330362, 5825905, 11651810, 12816991, 25633982, 64084955, 128169910]

約数ペア:

[(1, 128169910), (2, 64084955), (5, 25633982), (10, 12816991), (11, 11651810), (22, 5825905), (55, 2330362), (71, 1805210), (110, 1165181), (142, 902605), (355, 361042), (710, 180521), (781, 164110), (1562, 82055), (3905, 32822), (7810, 16411)]