285481360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{87037}}^1$

素因数の和:87091

約数の個数: 40

約数和(自身を含む): 679940856

約数和(自身を除く): 394459496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 87037, 174074, 348148, 435185, 696296, 870370, 1392592, 1740740, 3481480, 3568517, 6962960, 7137034, 14274068, 17842585, 28548136, 35685170, 57096272, 71370340, 142740680, 285481360]

約数ペア:

[(1, 285481360), (2, 142740680), (4, 71370340), (5, 57096272), (8, 35685170), (10, 28548136), (16, 17842585), (20, 14274068), (40, 7137034), (41, 6962960), (80, 3568517), (82, 3481480), (164, 1740740), (205, 1392592), (328, 870370), (410, 696296), (656, 435185), (820, 348148), (1640, 174074), (3280, 87037)]