20329075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 27560736

約数和(自身を除く): 7231661

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 881, 923, 1775, 4405, 4615, 11453, 22025, 23075, 57265, 62551, 286325, 312755, 813163, 1563775, 4065815, 20329075]

約数ペア:

[(1, 20329075), (5, 4065815), (13, 1563775), (25, 813163), (65, 312755), (71, 286325), (325, 62551), (355, 57265), (881, 23075), (923, 22025), (1775, 11453), (4405, 4615)]