251750240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:389

約数の個数: 144

約数和(自身を含む): 699641712

約数和(自身を除く): 447891472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 163, 196, 197, 224, 245, 280, 326, 392, 394, 490, 560, 652, 784, 788, 815, 980, 985, 1120, 1141, 1304, 1379, 1568, 1576, 1630, 1960, 1970, 2282, 2608, 2758, 3152, 3260, 3920, 3940, 4564, 5216, 5516, 5705, 6304, 6520, 6895, 7840, 7880, 7987, 9128, 9653, 11032, 11410, 13040, 13790, 15760, 15974, 18256, 19306, 22064, 22820, 26080, 27580, 31520, 31948, 32111, 36512, 38612, 39935, 44128, 45640, 48265, 55160, 63896, 64222, 77224, 79870, 91280, 96530, 110320, 127792, 128444, 154448, 159740, 160555, 182560, 193060, 220640, 224777, 255584, 256888, 308896, 319480, 321110, 386120, 449554, 513776, 638960, 642220, 772240, 899108, 1027552, 1123885, 1277920, 1284440, 1544480, 1573439, 1798216, 2247770, 2568880, 3146878, 3596432, 4495540, 5137760, 6293756, 7192864, 7867195, 8991080, 12587512, 15734390, 17982160, 25175024, 31468780, 35964320, 50350048, 62937560, 125875120, 251750240]

約数ペア:

[(1, 251750240), (2, 125875120), (4, 62937560), (5, 50350048), (7, 35964320), (8, 31468780), (10, 25175024), (14, 17982160), (16, 15734390), (20, 12587512), (28, 8991080), (32, 7867195), (35, 7192864), (40, 6293756), (49, 5137760), (56, 4495540), (70, 3596432), (80, 3146878), (98, 2568880), (112, 2247770), (140, 1798216), (160, 1573439), (163, 1544480), (196, 1284440), (197, 1277920), (224, 1123885), (245, 1027552), (280, 899108), (326, 772240), (392, 642220), (394, 638960), (490, 513776), (560, 449554), (652, 386120), (784, 321110), (788, 319480), (815, 308896), (980, 256888), (985, 255584), (1120, 224777), (1141, 220640), (1304, 193060), (1379, 182560), (1568, 160555), (1576, 159740), (1630, 154448), (1960, 128444), (1970, 127792), (2282, 110320), (2608, 96530), (2758, 91280), (3152, 79870), (3260, 77224), (3920, 64222), (3940, 63896), (4564, 55160), (5216, 48265), (5516, 45640), (5705, 44128), (6304, 39935), (6520, 38612), (6895, 36512), (7840, 32111), (7880, 31948), (7987, 31520), (9128, 27580), (9653, 26080), (11032, 22820), (11410, 22064), (13040, 19306), (13790, 18256), (15760, 15974)]