20783575

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 27007200

約数和(自身を除く): 6223625

約数列:

[1, 5, 25, 29, 109, 145, 263, 545, 725, 1315, 2725, 3161, 6575, 7627, 15805, 28667, 38135, 79025, 143335, 190675, 716675, 831343, 4156715, 20783575]

約数ペア:

[(1, 20783575), (5, 4156715), (25, 831343), (29, 716675), (109, 190675), (145, 143335), (263, 79025), (545, 38135), (725, 28667), (1315, 15805), (2725, 7627), (3161, 6575)]