19704940

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8719}}^1$

素因数の和:8841

約数の個数: 24

約数和(自身を含む): 41751360

約数和(自身を除く): 22046420

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8719, 17438, 34876, 43595, 87190, 174380, 985247, 1970494, 3940988, 4926235, 9852470, 19704940]

約数ペア:

[(1, 19704940), (2, 9852470), (4, 4926235), (5, 3940988), (10, 1970494), (20, 985247), (113, 174380), (226, 87190), (452, 43595), (565, 34876), (1130, 17438), (2260, 8719)]