20731657175

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{1499}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 26810784000

約数和(自身を除く): 6079126825

約数列:

[1, 5, 25, 41, 103, 131, 205, 515, 655, 1025, 1499, 2575, 3275, 4223, 5371, 7495, 13493, 21115, 26855, 37475, 61459, 67465, 105575, 134275, 154397, 196369, 307295, 337325, 553213, 771985, 981845, 1536475, 2766065, 3859925, 4909225, 6330277, 8051129, 13830325, 20226007, 31651385, 40255645, 101130035, 158256925, 201278225, 505650175, 829266287, 4146331435, 20731657175]

約数ペア:

[(1, 20731657175), (5, 4146331435), (25, 829266287), (41, 505650175), (103, 201278225), (131, 158256925), (205, 101130035), (515, 40255645), (655, 31651385), (1025, 20226007), (1499, 13830325), (2575, 8051129), (3275, 6330277), (4223, 4909225), (5371, 3859925), (7495, 2766065), (13493, 1536475), (21115, 981845), (26855, 771985), (37475, 553213), (61459, 337325), (67465, 307295), (105575, 196369), (134275, 154397)]