54315020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 117821088

約数和(自身を除く): 63506068

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 274, 430, 461, 548, 685, 860, 922, 1370, 1844, 2305, 2740, 4610, 5891, 9220, 11782, 19823, 23564, 29455, 39646, 58910, 63157, 79292, 99115, 117820, 126314, 198230, 252628, 315785, 396460, 631570, 1263140, 2715751, 5431502, 10863004, 13578755, 27157510, 54315020]

約数ペア:

[(1, 54315020), (2, 27157510), (4, 13578755), (5, 10863004), (10, 5431502), (20, 2715751), (43, 1263140), (86, 631570), (137, 396460), (172, 315785), (215, 252628), (274, 198230), (430, 126314), (461, 117820), (548, 99115), (685, 79292), (860, 63157), (922, 58910), (1370, 39646), (1844, 29455), (2305, 23564), (2740, 19823), (4610, 11782), (5891, 9220)]