20512030165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{683}}^1\times {\mathrm{991}}^1$

素因数の和:1738

約数の個数: 64

約数和(自身を含む): 29312409600

約数和(自身を除く): 8800379435

約数列:

[1, 5, 11, 19, 29, 55, 95, 145, 209, 319, 551, 683, 991, 1045, 1595, 2755, 3415, 4955, 6061, 7513, 10901, 12977, 18829, 19807, 28739, 30305, 37565, 54505, 64885, 94145, 99035, 142747, 143695, 207119, 217877, 316129, 376333, 546041, 676853, 713735, 1035595, 1089385, 1580645, 1881665, 2730205, 3384265, 4139663, 6006451, 7445383, 12860207, 19628737, 20698315, 30032255, 37226915, 64301035, 98143685, 141462277, 215916107, 372946003, 707311385, 1079580535, 1864730015, 4102406033, 20512030165]

約数ペア:

[(1, 20512030165), (5, 4102406033), (11, 1864730015), (19, 1079580535), (29, 707311385), (55, 372946003), (95, 215916107), (145, 141462277), (209, 98143685), (319, 64301035), (551, 37226915), (683, 30032255), (991, 20698315), (1045, 19628737), (1595, 12860207), (2755, 7445383), (3415, 6006451), (4955, 4139663), (6061, 3384265), (7513, 2730205), (10901, 1881665), (12977, 1580645), (18829, 1089385), (19807, 1035595), (28739, 713735), (30305, 676853), (37565, 546041), (54505, 376333), (64885, 316129), (94145, 217877), (99035, 207119), (142747, 143695)]