218585140

素因数分解:

$2^2\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{10789}}^1$

素因数の和:11811

約数の個数: 24

約数和(自身を含む): 459524520

約数和(自身を除く): 240939380

約数列:

[1, 2, 4, 5, 10, 20, 1013, 2026, 4052, 5065, 10130, 10789, 20260, 21578, 43156, 53945, 107890, 215780, 10929257, 21858514, 43717028, 54646285, 109292570, 218585140]

約数ペア:

[(1, 218585140), (2, 109292570), (4, 54646285), (5, 43717028), (10, 21858514), (20, 10929257), (1013, 215780), (2026, 107890), (4052, 53945), (5065, 43156), (10130, 21578), (10789, 20260)]