200810920

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{6379}}^1$

素因数の和:7177

約数の個数: 32

約数和(自身を含む): 452469600

約数和(自身を除く): 251658680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1574, 3148, 3935, 6296, 6379, 7870, 12758, 15740, 25516, 31480, 31895, 51032, 63790, 127580, 255160, 5020273, 10040546, 20081092, 25101365, 40162184, 50202730, 100405460, 200810920]

約数ペア:

[(1, 200810920), (2, 100405460), (4, 50202730), (5, 40162184), (8, 25101365), (10, 20081092), (20, 10040546), (40, 5020273), (787, 255160), (1574, 127580), (3148, 63790), (3935, 51032), (6296, 31895), (6379, 31480), (7870, 25516), (12758, 15740)]