19570780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{499}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 23521220

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 499, 530, 740, 998, 1060, 1961, 1996, 2495, 3922, 4990, 7844, 9805, 9980, 18463, 19610, 26447, 36926, 39220, 52894, 73852, 92315, 105788, 132235, 184630, 264470, 369260, 528940, 978539, 1957078, 3914156, 4892695, 9785390, 19570780]

約数ペア:

[(1, 19570780), (2, 9785390), (4, 4892695), (5, 3914156), (10, 1957078), (20, 978539), (37, 528940), (53, 369260), (74, 264470), (106, 184630), (148, 132235), (185, 105788), (212, 92315), (265, 73852), (370, 52894), (499, 39220), (530, 36926), (740, 26447), (998, 19610), (1060, 18463), (1961, 9980), (1996, 9805), (2495, 7844), (3922, 4990)]