79799600

素因数分解:

$2^4\times 5^2\times {\mathrm{199499}}^1$

素因数の和:199517

約数の個数: 30

約数和(自身を含む): 191719500

約数和(自身を除く): 111919900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 199499, 398998, 797996, 997495, 1595992, 1994990, 3191984, 3989980, 4987475, 7979960, 9974950, 15959920, 19949900, 39899800, 79799600]

約数ペア:

[(1, 79799600), (2, 39899800), (4, 19949900), (5, 15959920), (8, 9974950), (10, 7979960), (16, 4987475), (20, 3989980), (25, 3191984), (40, 1994990), (50, 1595992), (80, 997495), (100, 797996), (200, 398998), (400, 199499)]