25802020

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{3079}}^1$

素因数の和:3507

約数の個数: 24

約数和(自身を含む): 54331200

約数和(自身を除く): 28529180

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 3079, 4190, 6158, 8380, 12316, 15395, 30790, 61580, 1290101, 2580202, 5160404, 6450505, 12901010, 25802020]

約数ペア:

[(1, 25802020), (2, 12901010), (4, 6450505), (5, 5160404), (10, 2580202), (20, 1290101), (419, 61580), (838, 30790), (1676, 15395), (2095, 12316), (3079, 8380), (4190, 6158)]