81347945

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{18301}}^1$

素因数の和:18440

約数の個数: 16

約数和(自身を含む): 112447488

約数和(自身を除く): 31099543

約数列:

[1, 5, 7, 35, 127, 635, 889, 4445, 18301, 91505, 128107, 640535, 2324227, 11621135, 16269589, 81347945]

約数ペア:

[(1, 81347945), (5, 16269589), (7, 11621135), (35, 2324227), (127, 640535), (635, 128107), (889, 91505), (4445, 18301)]