78916540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{1321}}^1$

素因数の和:1462

約数の個数: 48

約数和(自身を含む): 173234880

約数和(自身を除く): 94318340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 103, 116, 145, 206, 290, 412, 515, 580, 1030, 1321, 2060, 2642, 2987, 5284, 5974, 6605, 11948, 13210, 14935, 26420, 29870, 38309, 59740, 76618, 136063, 153236, 191545, 272126, 383090, 544252, 680315, 766180, 1360630, 2721260, 3945827, 7891654, 15783308, 19729135, 39458270, 78916540]

約数ペア:

[(1, 78916540), (2, 39458270), (4, 19729135), (5, 15783308), (10, 7891654), (20, 3945827), (29, 2721260), (58, 1360630), (103, 766180), (116, 680315), (145, 544252), (206, 383090), (290, 272126), (412, 191545), (515, 153236), (580, 136063), (1030, 76618), (1321, 59740), (2060, 38309), (2642, 29870), (2987, 26420), (5284, 14935), (5974, 13210), (6605, 11948)]