79870000

素因数分解:

$2^4\times 5^4\times 7^2\times {\mathrm{163}}^1$

素因数の和:205

約数の個数: 150

約数和(自身を含む): 226324428

約数和(自身を除く): 146454428

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 125, 140, 163, 175, 196, 200, 245, 250, 280, 326, 350, 392, 400, 490, 500, 560, 625, 652, 700, 784, 815, 875, 980, 1000, 1141, 1225, 1250, 1304, 1400, 1630, 1750, 1960, 2000, 2282, 2450, 2500, 2608, 2800, 3260, 3500, 3920, 4075, 4375, 4564, 4900, 5000, 5705, 6125, 6520, 7000, 7987, 8150, 8750, 9128, 9800, 10000, 11410, 12250, 13040, 14000, 15974, 16300, 17500, 18256, 19600, 20375, 22820, 24500, 28525, 30625, 31948, 32600, 35000, 39935, 40750, 45640, 49000, 57050, 61250, 63896, 65200, 70000, 79870, 81500, 91280, 98000, 101875, 114100, 122500, 127792, 142625, 159740, 163000, 199675, 203750, 228200, 245000, 285250, 319480, 326000, 399350, 407500, 456400, 490000, 570500, 638960, 713125, 798700, 815000, 998375, 1141000, 1426250, 1597400, 1630000, 1996750, 2282000, 2852500, 3194800, 3993500, 4991875, 5705000, 7987000, 9983750, 11410000, 15974000, 19967500, 39935000, 79870000]

約数ペア:

[(1, 79870000), (2, 39935000), (4, 19967500), (5, 15974000), (7, 11410000), (8, 9983750), (10, 7987000), (14, 5705000), (16, 4991875), (20, 3993500), (25, 3194800), (28, 2852500), (35, 2282000), (40, 1996750), (49, 1630000), (50, 1597400), (56, 1426250), (70, 1141000), (80, 998375), (98, 815000), (100, 798700), (112, 713125), (125, 638960), (140, 570500), (163, 490000), (175, 456400), (196, 407500), (200, 399350), (245, 326000), (250, 319480), (280, 285250), (326, 245000), (350, 228200), (392, 203750), (400, 199675), (490, 163000), (500, 159740), (560, 142625), (625, 127792), (652, 122500), (700, 114100), (784, 101875), (815, 98000), (875, 91280), (980, 81500), (1000, 79870), (1141, 70000), (1225, 65200), (1250, 63896), (1304, 61250), (1400, 57050), (1630, 49000), (1750, 45640), (1960, 40750), (2000, 39935), (2282, 35000), (2450, 32600), (2500, 31948), (2608, 30625), (2800, 28525), (3260, 24500), (3500, 22820), (3920, 20375), (4075, 19600), (4375, 18256), (4564, 17500), (4900, 16300), (5000, 15974), (5705, 14000), (6125, 13040), (6520, 12250), (7000, 11410), (7987, 10000), (8150, 9800), (8750, 9128)]