51581680

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{3727}}^1$

素因数の和:3913

約数の個数: 40

約数和(自身を含む): 120652992

約数和(自身を除く): 69071312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 3727, 6920, 7454, 13840, 14908, 18635, 29816, 37270, 59632, 74540, 149080, 298160, 644771, 1289542, 2579084, 3223855, 5158168, 6447710, 10316336, 12895420, 25790840, 51581680]

約数ペア:

[(1, 51581680), (2, 25790840), (4, 12895420), (5, 10316336), (8, 6447710), (10, 5158168), (16, 3223855), (20, 2579084), (40, 1289542), (80, 644771), (173, 298160), (346, 149080), (692, 74540), (865, 59632), (1384, 37270), (1730, 29816), (2768, 18635), (3460, 14908), (3727, 13840), (6920, 7454)]