208987525

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{3187}}^1$

素因数の和:3301

約数の個数: 24

約数和(自身を含む): 269602784

約数和(自身を除く): 60615259

約数列:

[1, 5, 25, 43, 61, 215, 305, 1075, 1525, 2623, 3187, 13115, 15935, 65575, 79675, 137041, 194407, 685205, 972035, 3426025, 4860175, 8359501, 41797505, 208987525]

約数ペア:

[(1, 208987525), (5, 41797505), (25, 8359501), (43, 4860175), (61, 3426025), (215, 972035), (305, 685205), (1075, 194407), (1525, 137041), (2623, 79675), (3187, 65575), (13115, 15935)]