19656620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 42977088

約数和(自身を除く): 23320468

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 101, 148, 185, 202, 263, 370, 404, 505, 526, 740, 1010, 1052, 1315, 2020, 2630, 3737, 5260, 7474, 9731, 14948, 18685, 19462, 26563, 37370, 38924, 48655, 53126, 74740, 97310, 106252, 132815, 194620, 265630, 531260, 982831, 1965662, 3931324, 4914155, 9828310, 19656620]

約数ペア:

[(1, 19656620), (2, 9828310), (4, 4914155), (5, 3931324), (10, 1965662), (20, 982831), (37, 531260), (74, 265630), (101, 194620), (148, 132815), (185, 106252), (202, 97310), (263, 74740), (370, 53126), (404, 48655), (505, 38924), (526, 37370), (740, 26563), (1010, 19462), (1052, 18685), (1315, 14948), (2020, 9731), (2630, 7474), (3737, 5260)]