40390000

素因数分解:

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

素因数の和:612

約数の個数: 100

約数和(自身を含む): 111951664

約数和(自身を除く): 71561664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 577, 625, 700, 875, 1000, 1154, 1250, 1400, 1750, 2000, 2308, 2500, 2800, 2885, 3500, 4039, 4375, 4616, 5000, 5770, 7000, 8078, 8750, 9232, 10000, 11540, 14000, 14425, 16156, 17500, 20195, 23080, 28850, 32312, 35000, 40390, 46160, 57700, 64624, 70000, 72125, 80780, 100975, 115400, 144250, 161560, 201950, 230800, 288500, 323120, 360625, 403900, 504875, 577000, 721250, 807800, 1009750, 1154000, 1442500, 1615600, 2019500, 2524375, 2885000, 4039000, 5048750, 5770000, 8078000, 10097500, 20195000, 40390000]

約数ペア:

[(1, 40390000), (2, 20195000), (4, 10097500), (5, 8078000), (7, 5770000), (8, 5048750), (10, 4039000), (14, 2885000), (16, 2524375), (20, 2019500), (25, 1615600), (28, 1442500), (35, 1154000), (40, 1009750), (50, 807800), (56, 721250), (70, 577000), (80, 504875), (100, 403900), (112, 360625), (125, 323120), (140, 288500), (175, 230800), (200, 201950), (250, 161560), (280, 144250), (350, 115400), (400, 100975), (500, 80780), (560, 72125), (577, 70000), (625, 64624), (700, 57700), (875, 46160), (1000, 40390), (1154, 35000), (1250, 32312), (1400, 28850), (1750, 23080), (2000, 20195), (2308, 17500), (2500, 16156), (2800, 14425), (2885, 14000), (3500, 11540), (4039, 10000), (4375, 9232), (4616, 8750), (5000, 8078), (5770, 7000)]