51276875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{6311}}^1$

素因数の和:6344

約数の個数: 20

約数和(自身を含む): 69015408

約数和(自身を除く): 17738533

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 6311, 8125, 31555, 82043, 157775, 410215, 788875, 2051075, 3944375, 10255375, 51276875]

約数ペア:

[(1, 51276875), (5, 10255375), (13, 3944375), (25, 2051075), (65, 788875), (125, 410215), (325, 157775), (625, 82043), (1625, 31555), (6311, 8125)]