80891480

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{3299}}^1$

素因数の和:3923

約数の個数: 32

約数和(自身を含む): 182358000

約数和(自身を除く): 101466520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 3065, 3299, 4904, 6130, 6598, 12260, 13196, 16495, 24520, 26392, 32990, 65980, 131960, 2022287, 4044574, 8089148, 10111435, 16178296, 20222870, 40445740, 80891480]

約数ペア:

[(1, 80891480), (2, 40445740), (4, 20222870), (5, 16178296), (8, 10111435), (10, 8089148), (20, 4044574), (40, 2022287), (613, 131960), (1226, 65980), (2452, 32990), (3065, 26392), (3299, 24520), (4904, 16495), (6130, 13196), (6598, 12260)]