8065520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2459}}^1$

素因数の和:2513

約数の個数: 40

約数和(自身を含む): 19217520

約数和(自身を除く): 11152000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2459, 3280, 4918, 9836, 12295, 19672, 24590, 39344, 49180, 98360, 100819, 196720, 201638, 403276, 504095, 806552, 1008190, 1613104, 2016380, 4032760, 8065520]

約数ペア:

[(1, 8065520), (2, 4032760), (4, 2016380), (5, 1613104), (8, 1008190), (10, 806552), (16, 504095), (20, 403276), (40, 201638), (41, 196720), (80, 100819), (82, 98360), (164, 49180), (205, 39344), (328, 24590), (410, 19672), (656, 12295), (820, 9836), (1640, 4918), (2459, 3280)]