77978720

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11887}}^1$

素因数の和:11943

約数の個数: 48

約数和(自身を含む): 188733888

約数和(自身を除く): 110755168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 11887, 23774, 47548, 59435, 95096, 118870, 190192, 237740, 380384, 475480, 487367, 950960, 974734, 1901920, 1949468, 2436835, 3898936, 4873670, 7797872, 9747340, 15595744, 19494680, 38989360, 77978720]

約数ペア:

[(1, 77978720), (2, 38989360), (4, 19494680), (5, 15595744), (8, 9747340), (10, 7797872), (16, 4873670), (20, 3898936), (32, 2436835), (40, 1949468), (41, 1901920), (80, 974734), (82, 950960), (160, 487367), (164, 475480), (205, 380384), (328, 237740), (410, 190192), (656, 118870), (820, 95096), (1312, 59435), (1640, 47548), (3280, 23774), (6560, 11887)]