209905620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{8117}}^1$

素因数の和:8560

約数の個数: 48

約数和(自身を含む): 589171968

約数和(自身を除く): 379266348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 862, 1293, 1724, 2155, 2586, 4310, 5172, 6465, 8117, 8620, 12930, 16234, 24351, 25860, 32468, 40585, 48702, 81170, 97404, 121755, 162340, 243510, 487020, 3498427, 6996854, 10495281, 13993708, 17492135, 20990562, 34984270, 41981124, 52476405, 69968540, 104952810, 209905620]

約数ペア:

[(1, 209905620), (2, 104952810), (3, 69968540), (4, 52476405), (5, 41981124), (6, 34984270), (10, 20990562), (12, 17492135), (15, 13993708), (20, 10495281), (30, 6996854), (60, 3498427), (431, 487020), (862, 243510), (1293, 162340), (1724, 121755), (2155, 97404), (2586, 81170), (4310, 48702), (5172, 40585), (6465, 32468), (8117, 25860), (8620, 24351), (12930, 16234)]