129988000

素因数分解:

$2^5\times 5^3\times {\mathrm{32497}}^1$

素因数の和:32522

約数の個数: 48

約数和(自身を含む): 319390344

約数和(自身を除く): 189402344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 32497, 64994, 129988, 162485, 259976, 324970, 519952, 649940, 812425, 1039904, 1299880, 1624850, 2599760, 3249700, 4062125, 5199520, 6499400, 8124250, 12998800, 16248500, 25997600, 32497000, 64994000, 129988000]

約数ペア:

[(1, 129988000), (2, 64994000), (4, 32497000), (5, 25997600), (8, 16248500), (10, 12998800), (16, 8124250), (20, 6499400), (25, 5199520), (32, 4062125), (40, 3249700), (50, 2599760), (80, 1624850), (100, 1299880), (125, 1039904), (160, 812425), (200, 649940), (250, 519952), (400, 324970), (500, 259976), (800, 162485), (1000, 129988), (2000, 64994), (4000, 32497)]