284865140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{4721}}^1$

素因数の和:5168

約数の個数: 48

約数和(自身を含む): 685407744

約数和(自身を除く): 400542604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 431, 862, 1724, 2155, 3017, 4310, 4721, 6034, 8620, 9442, 12068, 15085, 18884, 23605, 30170, 33047, 47210, 60340, 66094, 94420, 132188, 165235, 330470, 660940, 2034751, 4069502, 8139004, 10173755, 14243257, 20347510, 28486514, 40695020, 56973028, 71216285, 142432570, 284865140]

約数ペア:

[(1, 284865140), (2, 142432570), (4, 71216285), (5, 56973028), (7, 40695020), (10, 28486514), (14, 20347510), (20, 14243257), (28, 10173755), (35, 8139004), (70, 4069502), (140, 2034751), (431, 660940), (862, 330470), (1724, 165235), (2155, 132188), (3017, 94420), (4310, 66094), (4721, 60340), (6034, 47210), (8620, 33047), (9442, 30170), (12068, 23605), (15085, 18884)]