81590350

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{277}}^1$

素因数の和:469

約数の個数: 48

約数和(自身を含む): 156985488

約数和(自身を除く): 75395138

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 137, 215, 274, 277, 430, 554, 685, 1075, 1370, 1385, 2150, 2770, 3425, 5891, 6850, 6925, 11782, 11911, 13850, 23822, 29455, 37949, 58910, 59555, 75898, 119110, 147275, 189745, 294550, 297775, 379490, 595550, 948725, 1631807, 1897450, 3263614, 8159035, 16318070, 40795175, 81590350]

約数ペア:

[(1, 81590350), (2, 40795175), (5, 16318070), (10, 8159035), (25, 3263614), (43, 1897450), (50, 1631807), (86, 948725), (137, 595550), (215, 379490), (274, 297775), (277, 294550), (430, 189745), (554, 147275), (685, 119110), (1075, 75898), (1370, 59555), (1385, 58910), (2150, 37949), (2770, 29455), (3425, 23822), (5891, 13850), (6850, 11911), (6925, 11782)]