91716280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{25763}}^1$

素因数の和:25863

約数の個数: 32

約数和(自身を含む): 208688400

約数和(自身を除く): 116972120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 25763, 51526, 103052, 128815, 206104, 257630, 515260, 1030520, 2292907, 4585814, 9171628, 11464535, 18343256, 22929070, 45858140, 91716280]

約数ペア:

[(1, 91716280), (2, 45858140), (4, 22929070), (5, 18343256), (8, 11464535), (10, 9171628), (20, 4585814), (40, 2292907), (89, 1030520), (178, 515260), (356, 257630), (445, 206104), (712, 128815), (890, 103052), (1780, 51526), (3560, 25763)]