181802180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{3271}}^1$

素因数の和:3684

約数の個数: 48

約数和(自身を含む): 437558016

約数和(自身を除く): 255755836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 1588, 1985, 2779, 3271, 3970, 5558, 6542, 7940, 11116, 13084, 13895, 16355, 22897, 27790, 32710, 45794, 55580, 65420, 91588, 114485, 228970, 457940, 1298587, 2597174, 5194348, 6492935, 9090109, 12985870, 18180218, 25971740, 36360436, 45450545, 90901090, 181802180]

約数ペア:

[(1, 181802180), (2, 90901090), (4, 45450545), (5, 36360436), (7, 25971740), (10, 18180218), (14, 12985870), (20, 9090109), (28, 6492935), (35, 5194348), (70, 2597174), (140, 1298587), (397, 457940), (794, 228970), (1588, 114485), (1985, 91588), (2779, 65420), (3271, 55580), (3970, 45794), (5558, 32710), (6542, 27790), (7940, 22897), (11116, 16355), (13084, 13895)]