199469080

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{15731}}^1$

素因数の和:16059

約数の個数: 32

約数和(自身を含む): 450249840

約数和(自身を除く): 250780760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 12680, 15731, 31462, 62924, 78655, 125848, 157310, 314620, 629240, 4986727, 9973454, 19946908, 24933635, 39893816, 49867270, 99734540, 199469080]

約数ペア:

[(1, 199469080), (2, 99734540), (4, 49867270), (5, 39893816), (8, 24933635), (10, 19946908), (20, 9973454), (40, 4986727), (317, 629240), (634, 314620), (1268, 157310), (1585, 125848), (2536, 78655), (3170, 62924), (6340, 31462), (12680, 15731)]