20329403770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{421}}^1\times {\mathrm{28573}}^1$

素因数の和:29027

約数の個数: 48

約数和(自身を含む): 39719803032

約数和(自身を除く): 19390399262

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 421, 842, 845, 1690, 2105, 4210, 5473, 10946, 27365, 28573, 54730, 57146, 71149, 142298, 142865, 285730, 355745, 371449, 711490, 742898, 1857245, 3714490, 4828837, 9657674, 12029233, 24058466, 24144185, 48288370, 60146165, 120292330, 156380029, 312760058, 781900145, 1563800290, 2032940377, 4065880754, 10164701885, 20329403770]

約数ペア:

[(1, 20329403770), (2, 10164701885), (5, 4065880754), (10, 2032940377), (13, 1563800290), (26, 781900145), (65, 312760058), (130, 156380029), (169, 120292330), (338, 60146165), (421, 48288370), (842, 24144185), (845, 24058466), (1690, 12029233), (2105, 9657674), (4210, 4828837), (5473, 3714490), (10946, 1857245), (27365, 742898), (28573, 711490), (54730, 371449), (57146, 355745), (71149, 285730), (142298, 142865)]