80494360

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{2557}}^1$

素因数の和:3355

約数の個数: 32

約数和(自身を含む): 181413360

約数和(自身を除く): 100919000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1574, 2557, 3148, 3935, 5114, 6296, 7870, 10228, 12785, 15740, 20456, 25570, 31480, 51140, 102280, 2012359, 4024718, 8049436, 10061795, 16098872, 20123590, 40247180, 80494360]

約数ペア:

[(1, 80494360), (2, 40247180), (4, 20123590), (5, 16098872), (8, 10061795), (10, 8049436), (20, 4024718), (40, 2012359), (787, 102280), (1574, 51140), (2557, 31480), (3148, 25570), (3935, 20456), (5114, 15740), (6296, 12785), (7870, 10228)]