771651460

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{2557}}^1$

素因数の和:2836

約数の個数: 48

約数和(自身を含む): 1650216960

約数和(自身を除く): 878565500

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 191, 316, 382, 395, 764, 790, 955, 1580, 1910, 2557, 3820, 5114, 10228, 12785, 15089, 25570, 30178, 51140, 60356, 75445, 150890, 202003, 301780, 404006, 488387, 808012, 976774, 1010015, 1953548, 2020030, 2441935, 4040060, 4883870, 9767740, 38582573, 77165146, 154330292, 192912865, 385825730, 771651460]

約数ペア:

[(1, 771651460), (2, 385825730), (4, 192912865), (5, 154330292), (10, 77165146), (20, 38582573), (79, 9767740), (158, 4883870), (191, 4040060), (316, 2441935), (382, 2020030), (395, 1953548), (764, 1010015), (790, 976774), (955, 808012), (1580, 488387), (1910, 404006), (2557, 301780), (3820, 202003), (5114, 150890), (10228, 75445), (12785, 60356), (15089, 51140), (25570, 30178)]