7450820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{28657}}^1$

素因数の和:28679

約数の個数: 24

約数和(自身を含む): 16850904

約数和(自身を除く): 9400084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 28657, 57314, 114628, 143285, 286570, 372541, 573140, 745082, 1490164, 1862705, 3725410, 7450820]

約数ペア:

[(1, 7450820), (2, 3725410), (4, 1862705), (5, 1490164), (10, 745082), (13, 573140), (20, 372541), (26, 286570), (52, 143285), (65, 114628), (130, 57314), (260, 28657)]