78791480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2411}}^1$

素因数の和:2484

約数の個数: 64

約数和(自身を含む): 191030400

約数和(自身を除く): 112238920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 2411, 3268, 4085, 4822, 6536, 8170, 9644, 12055, 16340, 19288, 24110, 32680, 45809, 48220, 91618, 96440, 103673, 183236, 207346, 229045, 366472, 414692, 458090, 518365, 829384, 916180, 1036730, 1832360, 1969787, 2073460, 3939574, 4146920, 7879148, 9848935, 15758296, 19697870, 39395740, 78791480]

約数ペア:

[(1, 78791480), (2, 39395740), (4, 19697870), (5, 15758296), (8, 9848935), (10, 7879148), (19, 4146920), (20, 3939574), (38, 2073460), (40, 1969787), (43, 1832360), (76, 1036730), (86, 916180), (95, 829384), (152, 518365), (172, 458090), (190, 414692), (215, 366472), (344, 229045), (380, 207346), (430, 183236), (760, 103673), (817, 96440), (860, 91618), (1634, 48220), (1720, 45809), (2411, 32680), (3268, 24110), (4085, 19288), (4822, 16340), (6536, 12055), (8170, 9644)]