171920740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{929}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 381225600

約数和(自身を除く): 209304860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 487, 929, 974, 1858, 1948, 2435, 3716, 4645, 4870, 9253, 9290, 9740, 17651, 18506, 18580, 35302, 37012, 46265, 70604, 88255, 92530, 176510, 185060, 353020, 452423, 904846, 1809692, 2262115, 4524230, 8596037, 9048460, 17192074, 34384148, 42980185, 85960370, 171920740]

約数ペア:

[(1, 171920740), (2, 85960370), (4, 42980185), (5, 34384148), (10, 17192074), (19, 9048460), (20, 8596037), (38, 4524230), (76, 2262115), (95, 1809692), (190, 904846), (380, 452423), (487, 353020), (929, 185060), (974, 176510), (1858, 92530), (1948, 88255), (2435, 70604), (3716, 46265), (4645, 37012), (4870, 35302), (9253, 18580), (9290, 18506), (9740, 17651)]