29980000

素因数分解:

$2^5\times 5^4\times {\mathrm{1499}}^1$

素因数の和:1529

約数の個数: 60

約数和(自身を含む): 73804500

約数和(自身を除く): 43824500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 1499, 2000, 2500, 2998, 4000, 5000, 5996, 7495, 10000, 11992, 14990, 20000, 23984, 29980, 37475, 47968, 59960, 74950, 119920, 149900, 187375, 239840, 299800, 374750, 599600, 749500, 936875, 1199200, 1499000, 1873750, 2998000, 3747500, 5996000, 7495000, 14990000, 29980000]

約数ペア:

[(1, 29980000), (2, 14990000), (4, 7495000), (5, 5996000), (8, 3747500), (10, 2998000), (16, 1873750), (20, 1499000), (25, 1199200), (32, 936875), (40, 749500), (50, 599600), (80, 374750), (100, 299800), (125, 239840), (160, 187375), (200, 149900), (250, 119920), (400, 74950), (500, 59960), (625, 47968), (800, 37475), (1000, 29980), (1250, 23984), (1499, 20000), (2000, 14990), (2500, 11992), (2998, 10000), (4000, 7495), (5000, 5996)]