7442440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4327}}^1$

素因数の和:4381

約数の個数: 32

約数和(自身を含む): 17138880

約数和(自身を除く): 9696440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 4327, 8654, 17308, 21635, 34616, 43270, 86540, 173080, 186061, 372122, 744244, 930305, 1488488, 1860610, 3721220, 7442440]

約数ペア:

[(1, 7442440), (2, 3721220), (4, 1860610), (5, 1488488), (8, 930305), (10, 744244), (20, 372122), (40, 186061), (43, 173080), (86, 86540), (172, 43270), (215, 34616), (344, 21635), (430, 17308), (860, 8654), (1720, 4327)]