17575820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 38320128

約数和(自身を除く): 20744308

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 107, 172, 191, 214, 215, 382, 428, 430, 535, 764, 860, 955, 1070, 1910, 2140, 3820, 4601, 8213, 9202, 16426, 18404, 20437, 23005, 32852, 40874, 41065, 46010, 81748, 82130, 92020, 102185, 164260, 204370, 408740, 878791, 1757582, 3515164, 4393955, 8787910, 17575820]

約数ペア:

[(1, 17575820), (2, 8787910), (4, 4393955), (5, 3515164), (10, 1757582), (20, 878791), (43, 408740), (86, 204370), (107, 164260), (172, 102185), (191, 92020), (214, 82130), (215, 81748), (382, 46010), (428, 41065), (430, 40874), (535, 32852), (764, 23005), (860, 20437), (955, 18404), (1070, 16426), (1910, 9202), (2140, 8213), (3820, 4601)]