20195000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{577}}^1$

素因数の和:610

約数の個数: 80

約数和(自身を含む): 54170160

約数和(自身を除く): 33975160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 577, 625, 700, 875, 1000, 1154, 1250, 1400, 1750, 2308, 2500, 2885, 3500, 4039, 4375, 4616, 5000, 5770, 7000, 8078, 8750, 11540, 14425, 16156, 17500, 20195, 23080, 28850, 32312, 35000, 40390, 57700, 72125, 80780, 100975, 115400, 144250, 161560, 201950, 288500, 360625, 403900, 504875, 577000, 721250, 807800, 1009750, 1442500, 2019500, 2524375, 2885000, 4039000, 5048750, 10097500, 20195000]

約数ペア:

[(1, 20195000), (2, 10097500), (4, 5048750), (5, 4039000), (7, 2885000), (8, 2524375), (10, 2019500), (14, 1442500), (20, 1009750), (25, 807800), (28, 721250), (35, 577000), (40, 504875), (50, 403900), (56, 360625), (70, 288500), (100, 201950), (125, 161560), (140, 144250), (175, 115400), (200, 100975), (250, 80780), (280, 72125), (350, 57700), (500, 40390), (577, 35000), (625, 32312), (700, 28850), (875, 23080), (1000, 20195), (1154, 17500), (1250, 16156), (1400, 14425), (1750, 11540), (2308, 8750), (2500, 8078), (2885, 7000), (3500, 5770), (4039, 5000), (4375, 4616)]