25612540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1061}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 57806784

約数和(自身を除く): 32194244

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1061, 1207, 1420, 2122, 2414, 4244, 4828, 5305, 6035, 10610, 12070, 18037, 21220, 24140, 36074, 72148, 75331, 90185, 150662, 180370, 301324, 360740, 376655, 753310, 1280627, 1506620, 2561254, 5122508, 6403135, 12806270, 25612540]

約数ペア:

[(1, 25612540), (2, 12806270), (4, 6403135), (5, 5122508), (10, 2561254), (17, 1506620), (20, 1280627), (34, 753310), (68, 376655), (71, 360740), (85, 301324), (142, 180370), (170, 150662), (284, 90185), (340, 75331), (355, 72148), (710, 36074), (1061, 24140), (1207, 21220), (1420, 18037), (2122, 12070), (2414, 10610), (4244, 6035), (4828, 5305)]