38990000

素因数分解:

$2^4\times 5^4\times 7^1\times {\mathrm{557}}^1$

素因数の和:592

約数の個数: 100

約数和(自身を含む): 108077904

約数和(自身を除く): 69087904

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, 557, 560, 625, 700, 875, 1000, 1114, 1250, 1400, 1750, 2000, 2228, 2500, 2785, 2800, 3500, 3899, 4375, 4456, 5000, 5570, 7000, 7798, 8750, 8912, 10000, 11140, 13925, 14000, 15596, 17500, 19495, 22280, 27850, 31192, 35000, 38990, 44560, 55700, 62384, 69625, 70000, 77980, 97475, 111400, 139250, 155960, 194950, 222800, 278500, 311920, 348125, 389900, 487375, 557000, 696250, 779800, 974750, 1114000, 1392500, 1559600, 1949500, 2436875, 2785000, 3899000, 4873750, 5570000, 7798000, 9747500, 19495000, 38990000]

約数ペア:

[(1, 38990000), (2, 19495000), (4, 9747500), (5, 7798000), (7, 5570000), (8, 4873750), (10, 3899000), (14, 2785000), (16, 2436875), (20, 1949500), (25, 1559600), (28, 1392500), (35, 1114000), (40, 974750), (50, 779800), (56, 696250), (70, 557000), (80, 487375), (100, 389900), (112, 348125), (125, 311920), (140, 278500), (175, 222800), (200, 194950), (250, 155960), (280, 139250), (350, 111400), (400, 97475), (500, 77980), (557, 70000), (560, 69625), (625, 62384), (700, 55700), (875, 44560), (1000, 38990), (1114, 35000), (1250, 31192), (1400, 27850), (1750, 22280), (2000, 19495), (2228, 17500), (2500, 15596), (2785, 14000), (2800, 13925), (3500, 11140), (3899, 10000), (4375, 8912), (4456, 8750), (5000, 7798), (5570, 7000)]