145771720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{84751}}^1$

素因数の和:84805

約数の個数: 32

約数和(自身を含む): 335617920

約数和(自身を除く): 189846200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 84751, 169502, 339004, 423755, 678008, 847510, 1695020, 3390040, 3644293, 7288586, 14577172, 18221465, 29154344, 36442930, 72885860, 145771720]

約数ペア:

[(1, 145771720), (2, 72885860), (4, 36442930), (5, 29154344), (8, 18221465), (10, 14577172), (20, 7288586), (40, 3644293), (43, 3390040), (86, 1695020), (172, 847510), (215, 678008), (344, 423755), (430, 339004), (860, 169502), (1720, 84751)]