212805280

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{30931}}^1$

素因数の和:30989

約数の個数: 48

約数和(自身を含む): 514461024

約数和(自身を除く): 301655744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 6880, 30931, 61862, 123724, 154655, 247448, 309310, 494896, 618620, 989792, 1237240, 1330033, 2474480, 2660066, 4948960, 5320132, 6650165, 10640264, 13300330, 21280528, 26600660, 42561056, 53201320, 106402640, 212805280]

約数ペア:

[(1, 212805280), (2, 106402640), (4, 53201320), (5, 42561056), (8, 26600660), (10, 21280528), (16, 13300330), (20, 10640264), (32, 6650165), (40, 5320132), (43, 4948960), (80, 2660066), (86, 2474480), (160, 1330033), (172, 1237240), (215, 989792), (344, 618620), (430, 494896), (688, 309310), (860, 247448), (1376, 154655), (1720, 123724), (3440, 61862), (6880, 30931)]