9977720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5801}}^1$

素因数の和:5855

約数の個数: 32

約数和(自身を含む): 22975920

約数和(自身を除く): 12998200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 5801, 11602, 23204, 29005, 46408, 58010, 116020, 232040, 249443, 498886, 997772, 1247215, 1995544, 2494430, 4988860, 9977720]

約数ペア:

[(1, 9977720), (2, 4988860), (4, 2494430), (5, 1995544), (8, 1247215), (10, 997772), (20, 498886), (40, 249443), (43, 232040), (86, 116020), (172, 58010), (215, 46408), (344, 29005), (430, 23204), (860, 11602), (1720, 5801)]