2000275

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 2678400

約数和(自身を除く): 678125

約数列:

[1, 5, 25, 29, 31, 89, 145, 155, 445, 725, 775, 899, 2225, 2581, 2759, 4495, 12905, 13795, 22475, 64525, 68975, 80011, 400055, 2000275]

約数ペア:

[(1, 2000275), (5, 400055), (25, 80011), (29, 68975), (31, 64525), (89, 22475), (145, 13795), (155, 12905), (445, 4495), (725, 2759), (775, 2581), (899, 2225)]