78775880

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{6959}}^1$

素因数の和:7253

約数の個数: 32

約数和(自身を含む): 177897600

約数和(自身を除く): 99121720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 6959, 11320, 13918, 27836, 34795, 55672, 69590, 139180, 278360, 1969397, 3938794, 7877588, 9846985, 15755176, 19693970, 39387940, 78775880]

約数ペア:

[(1, 78775880), (2, 39387940), (4, 19693970), (5, 15755176), (8, 9846985), (10, 7877588), (20, 3938794), (40, 1969397), (283, 278360), (566, 139180), (1132, 69590), (1415, 55672), (2264, 34795), (2830, 27836), (5660, 13918), (6959, 11320)]