8441680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8117}}^1$

素因数の和:8143

約数の個数: 40

約数和(自身を含む): 21139272

約数和(自身を除く): 12697592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 8117, 16234, 32468, 40585, 64936, 81170, 105521, 129872, 162340, 211042, 324680, 422084, 527605, 649360, 844168, 1055210, 1688336, 2110420, 4220840, 8441680]

約数ペア:

[(1, 8441680), (2, 4220840), (4, 2110420), (5, 1688336), (8, 1055210), (10, 844168), (13, 649360), (16, 527605), (20, 422084), (26, 324680), (40, 211042), (52, 162340), (65, 129872), (80, 105521), (104, 81170), (130, 64936), (208, 40585), (260, 32468), (520, 16234), (1040, 8117)]