2220348220

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{431}}^1\times {\mathrm{1439}}^1$

素因数の和:2058

約数の個数: 48

約数和(自身を含む): 4702924800

約数和(自身を除く): 2482576580

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 431, 716, 862, 895, 1439, 1724, 1790, 2155, 2878, 3580, 4310, 5756, 7195, 8620, 14390, 28780, 77149, 154298, 257581, 308596, 385745, 515162, 620209, 771490, 1030324, 1240418, 1287905, 1542980, 2480836, 2575810, 3101045, 5151620, 6202090, 12404180, 111017411, 222034822, 444069644, 555087055, 1110174110, 2220348220]

約数ペア:

[(1, 2220348220), (2, 1110174110), (4, 555087055), (5, 444069644), (10, 222034822), (20, 111017411), (179, 12404180), (358, 6202090), (431, 5151620), (716, 3101045), (862, 2575810), (895, 2480836), (1439, 1542980), (1724, 1287905), (1790, 1240418), (2155, 1030324), (2878, 771490), (3580, 620209), (4310, 515162), (5756, 385745), (7195, 308596), (8620, 257581), (14390, 154298), (28780, 77149)]