18994000

素因数分解:

$2^4\times 5^3\times {\mathrm{9497}}^1$

素因数の和:9520

約数の個数: 40

約数和(自身を含む): 45932328

約数和(自身を除く): 26938328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9497, 18994, 37988, 47485, 75976, 94970, 151952, 189940, 237425, 379880, 474850, 759760, 949700, 1187125, 1899400, 2374250, 3798800, 4748500, 9497000, 18994000]

約数ペア:

[(1, 18994000), (2, 9497000), (4, 4748500), (5, 3798800), (8, 2374250), (10, 1899400), (16, 1187125), (20, 949700), (25, 759760), (40, 474850), (50, 379880), (80, 237425), (100, 189940), (125, 151952), (200, 94970), (250, 75976), (400, 47485), (500, 37988), (1000, 18994), (2000, 9497)]