13311080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 31363200

約数和(自身を除く): 18052120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 109, 142, 172, 215, 218, 284, 344, 355, 430, 436, 545, 568, 710, 860, 872, 1090, 1420, 1720, 2180, 2840, 3053, 4360, 4687, 6106, 7739, 9374, 12212, 15265, 15478, 18748, 23435, 24424, 30530, 30956, 37496, 38695, 46870, 61060, 61912, 77390, 93740, 122120, 154780, 187480, 309560, 332777, 665554, 1331108, 1663885, 2662216, 3327770, 6655540, 13311080]

約数ペア:

[(1, 13311080), (2, 6655540), (4, 3327770), (5, 2662216), (8, 1663885), (10, 1331108), (20, 665554), (40, 332777), (43, 309560), (71, 187480), (86, 154780), (109, 122120), (142, 93740), (172, 77390), (215, 61912), (218, 61060), (284, 46870), (344, 38695), (355, 37496), (430, 30956), (436, 30530), (545, 24424), (568, 23435), (710, 18748), (860, 15478), (872, 15265), (1090, 12212), (1420, 9374), (1720, 7739), (2180, 6106), (2840, 4687), (3053, 4360)]