128596760

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{3529}}^1$

素因数の和:4451

約数の個数: 32

約数和(自身を含む): 289742400

約数和(自身を除く): 161145640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 3529, 3644, 4555, 7058, 7288, 9110, 14116, 17645, 18220, 28232, 35290, 36440, 70580, 141160, 3214919, 6429838, 12859676, 16074595, 25719352, 32149190, 64298380, 128596760]

約数ペア:

[(1, 128596760), (2, 64298380), (4, 32149190), (5, 25719352), (8, 16074595), (10, 12859676), (20, 6429838), (40, 3214919), (911, 141160), (1822, 70580), (3529, 36440), (3644, 35290), (4555, 28232), (7058, 18220), (7288, 17645), (9110, 14116)]