648622475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{3259}}^1$

素因数の和:3707

約数の個数: 24

約数和(自身を含む): 848904000

約数和(自身を除く): 200281525

約数列:

[1, 5, 19, 25, 95, 419, 475, 2095, 3259, 7961, 10475, 16295, 39805, 61921, 81475, 199025, 309605, 1365521, 1548025, 6827605, 25944899, 34138025, 129724495, 648622475]

約数ペア:

[(1, 648622475), (5, 129724495), (19, 34138025), (25, 25944899), (95, 6827605), (419, 1548025), (475, 1365521), (2095, 309605), (3259, 199025), (7961, 81475), (10475, 61921), (16295, 39805)]