140889520

素因数分解:

$2^4\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1999}}^1$

素因数の和:2893

約数の個数: 40

約数和(自身を含む): 328104000

約数和(自身を除く): 187214480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 881, 1762, 1999, 3524, 3998, 4405, 7048, 7996, 8810, 9995, 14096, 15992, 17620, 19990, 31984, 35240, 39980, 70480, 79960, 159920, 1761119, 3522238, 7044476, 8805595, 14088952, 17611190, 28177904, 35222380, 70444760, 140889520]

約数ペア:

[(1, 140889520), (2, 70444760), (4, 35222380), (5, 28177904), (8, 17611190), (10, 14088952), (16, 8805595), (20, 7044476), (40, 3522238), (80, 1761119), (881, 159920), (1762, 79960), (1999, 70480), (3524, 39980), (3998, 35240), (4405, 31984), (7048, 19990), (7996, 17620), (8810, 15992), (9995, 14096)]