20508780615

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1997}}^1\times {\mathrm{9643}}^1$

素因数の和:11719

約数の個数: 32

約数和(自身を含む): 33296334336

約数和(自身を除く): 12787553721

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 1997, 5991, 9643, 9985, 28929, 29955, 48215, 141787, 144645, 425361, 684653, 708935, 2053959, 2126805, 3423265, 10269795, 19257071, 57771213, 96285355, 288856065, 1367252041, 4101756123, 6836260205, 20508780615]

約数ペア:

[(1, 20508780615), (3, 6836260205), (5, 4101756123), (15, 1367252041), (71, 288856065), (213, 96285355), (355, 57771213), (1065, 19257071), (1997, 10269795), (5991, 3423265), (9643, 2126805), (9985, 2053959), (28929, 708935), (29955, 684653), (48215, 425361), (141787, 144645)]