20473145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 31401216

約数和(自身を除く): 10928071

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 205, 287, 385, 451, 1297, 1435, 2255, 3157, 6485, 9079, 14267, 15785, 45395, 53177, 71335, 99869, 265885, 372239, 499345, 584947, 1861195, 2924735, 4094629, 20473145]

約数ペア:

[(1, 20473145), (5, 4094629), (7, 2924735), (11, 1861195), (35, 584947), (41, 499345), (55, 372239), (77, 265885), (205, 99869), (287, 71335), (385, 53177), (451, 45395), (1297, 15785), (1435, 14267), (2255, 9079), (3157, 6485)]