84125140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{983}}^1$

素因数の和:1392

約数の個数: 48

約数和(自身を含む): 193415040

約数和(自身を除く): 109289900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 389, 778, 983, 1556, 1945, 1966, 3890, 3932, 4279, 4915, 7780, 8558, 9830, 10813, 17116, 19660, 21395, 21626, 42790, 43252, 54065, 85580, 108130, 216260, 382387, 764774, 1529548, 1911935, 3823870, 4206257, 7647740, 8412514, 16825028, 21031285, 42062570, 84125140]

約数ペア:

[(1, 84125140), (2, 42062570), (4, 21031285), (5, 16825028), (10, 8412514), (11, 7647740), (20, 4206257), (22, 3823870), (44, 1911935), (55, 1529548), (110, 764774), (220, 382387), (389, 216260), (778, 108130), (983, 85580), (1556, 54065), (1945, 43252), (1966, 42790), (3890, 21626), (3932, 21395), (4279, 19660), (4915, 17116), (7780, 10813), (8558, 9830)]