20157445

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1277}}^1$

素因数の和:1341

約数の個数: 32

約数和(自身を含む): 30917376

約数和(自身を除く): 10759931

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 205, 287, 385, 451, 1277, 1435, 2255, 3157, 6385, 8939, 14047, 15785, 44695, 52357, 70235, 98329, 261785, 366499, 491645, 575927, 1832495, 2879635, 4031489, 20157445]

約数ペア:

[(1, 20157445), (5, 4031489), (7, 2879635), (11, 1832495), (35, 575927), (41, 491645), (55, 366499), (77, 261785), (205, 98329), (287, 70235), (385, 52357), (451, 44695), (1277, 15785), (1435, 14047), (2255, 8939), (3157, 6385)]