2664280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1603

約数の個数: 32

約数和(自身を含む): 6138000

約数和(自身を除く): 3473720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1549, 1720, 3098, 6196, 7745, 12392, 15490, 30980, 61960, 66607, 133214, 266428, 333035, 532856, 666070, 1332140, 2664280]

約数ペア:

[(1, 2664280), (2, 1332140), (4, 666070), (5, 532856), (8, 333035), (10, 266428), (20, 133214), (40, 66607), (43, 61960), (86, 30980), (172, 15490), (215, 12392), (344, 7745), (430, 6196), (860, 3098), (1549, 1720)]