51687640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{14519}}^1$

素因数の和:14619

約数の個数: 32

約数和(自身を含む): 117612000

約数和(自身を除く): 65924360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 14519, 29038, 58076, 72595, 116152, 145190, 290380, 580760, 1292191, 2584382, 5168764, 6460955, 10337528, 12921910, 25843820, 51687640]

約数ペア:

[(1, 51687640), (2, 25843820), (4, 12921910), (5, 10337528), (8, 6460955), (10, 5168764), (20, 2584382), (40, 1292191), (89, 580760), (178, 290380), (356, 145190), (445, 116152), (712, 72595), (890, 58076), (1780, 29038), (3560, 14519)]