61665520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{15731}}^1$

素因数の和:15758

約数の個数: 60

約数和(自身を含む): 166790664

約数和(自身を除く): 105125144

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, 15731, 31462, 62924, 78655, 110117, 125848, 157310, 220234, 251696, 314620, 440468, 550585, 629240, 770819, 880936, 1101170, 1258480, 1541638, 1761872, 2202340, 3083276, 3854095, 4404680, 6166552, 7708190, 8809360, 12333104, 15416380, 30832760, 61665520]

約数ペア:

[(1, 61665520), (2, 30832760), (4, 15416380), (5, 12333104), (7, 8809360), (8, 7708190), (10, 6166552), (14, 4404680), (16, 3854095), (20, 3083276), (28, 2202340), (35, 1761872), (40, 1541638), (49, 1258480), (56, 1101170), (70, 880936), (80, 770819), (98, 629240), (112, 550585), (140, 440468), (196, 314620), (245, 251696), (280, 220234), (392, 157310), (490, 125848), (560, 110117), (784, 78655), (980, 62924), (1960, 31462), (3920, 15731)]