77984050

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 150381000

約数和(自身を除く): 72396950

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 109, 205, 218, 349, 410, 545, 698, 1025, 1090, 1745, 2050, 2725, 3490, 4469, 5450, 8725, 8938, 14309, 17450, 22345, 28618, 38041, 44690, 71545, 76082, 111725, 143090, 190205, 223450, 357725, 380410, 715450, 951025, 1559681, 1902050, 3119362, 7798405, 15596810, 38992025, 77984050]

約数ペア:

[(1, 77984050), (2, 38992025), (5, 15596810), (10, 7798405), (25, 3119362), (41, 1902050), (50, 1559681), (82, 951025), (109, 715450), (205, 380410), (218, 357725), (349, 223450), (410, 190205), (545, 143090), (698, 111725), (1025, 76082), (1090, 71545), (1745, 44690), (2050, 38041), (2725, 28618), (3490, 22345), (4469, 17450), (5450, 14309), (8725, 8938)]