201721840

素因数分解:

$2^4\times 5^1\times {\mathrm{827}}^1\times {\mathrm{3049}}^1$

素因数の和:3889

約数の個数: 40

約数和(自身を含む): 469724400

約数和(自身を除く): 268002560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 827, 1654, 3049, 3308, 4135, 6098, 6616, 8270, 12196, 13232, 15245, 16540, 24392, 30490, 33080, 48784, 60980, 66160, 121960, 243920, 2521523, 5043046, 10086092, 12607615, 20172184, 25215230, 40344368, 50430460, 100860920, 201721840]

約数ペア:

[(1, 201721840), (2, 100860920), (4, 50430460), (5, 40344368), (8, 25215230), (10, 20172184), (16, 12607615), (20, 10086092), (40, 5043046), (80, 2521523), (827, 243920), (1654, 121960), (3049, 66160), (3308, 60980), (4135, 48784), (6098, 33080), (6616, 30490), (8270, 24392), (12196, 16540), (13232, 15245)]