211017520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{53831}}^1$

素因数の和:53858

約数の個数: 60

約数和(自身を含む): 570726864

約数和(自身を除く): 359709344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 53831, 107662, 215324, 269155, 376817, 430648, 538310, 753634, 861296, 1076620, 1507268, 1884085, 2153240, 2637719, 3014536, 3768170, 4306480, 5275438, 6029072, 7536340, 10550876, 13188595, 15072680, 21101752, 26377190, 30145360, 42203504, 52754380, 105508760, 211017520]

約数ペア:

[(1, 211017520), (2, 105508760), (4, 52754380), (5, 42203504), (7, 30145360), (8, 26377190), (10, 21101752), (14, 15072680), (16, 13188595), (20, 10550876), (28, 7536340), (35, 6029072), (40, 5275438), (49, 4306480), (56, 3768170), (70, 3014536), (80, 2637719), (98, 2153240), (112, 1884085), (140, 1507268), (196, 1076620), (245, 861296), (280, 753634), (392, 538310), (490, 430648), (560, 376817), (784, 269155), (980, 215324), (1960, 107662), (3920, 53831)]