128869280

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18731}}^1$

素因数の和:18789

約数の個数: 48

約数和(自身を含む): 311550624

約数和(自身を除く): 182681344

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, 18731, 37462, 74924, 93655, 149848, 187310, 299696, 374620, 599392, 749240, 805433, 1498480, 1610866, 2996960, 3221732, 4027165, 6443464, 8054330, 12886928, 16108660, 25773856, 32217320, 64434640, 128869280]

約数ペア:

[(1, 128869280), (2, 64434640), (4, 32217320), (5, 25773856), (8, 16108660), (10, 12886928), (16, 8054330), (20, 6443464), (32, 4027165), (40, 3221732), (43, 2996960), (80, 1610866), (86, 1498480), (160, 805433), (172, 749240), (215, 599392), (344, 374620), (430, 299696), (688, 187310), (860, 149848), (1376, 93655), (1720, 74924), (3440, 37462), (6880, 18731)]