338127440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{86257}}^1$

素因数の和:86284

約数の個数: 60

約数和(自身を含む): 914507316

約数和(自身を除く): 576379876

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 86257, 172514, 345028, 431285, 603799, 690056, 862570, 1207598, 1380112, 1725140, 2415196, 3018995, 3450280, 4226593, 4830392, 6037990, 6900560, 8453186, 9660784, 12075980, 16906372, 21132965, 24151960, 33812744, 42265930, 48303920, 67625488, 84531860, 169063720, 338127440]

約数ペア:

[(1, 338127440), (2, 169063720), (4, 84531860), (5, 67625488), (7, 48303920), (8, 42265930), (10, 33812744), (14, 24151960), (16, 21132965), (20, 16906372), (28, 12075980), (35, 9660784), (40, 8453186), (49, 6900560), (56, 6037990), (70, 4830392), (80, 4226593), (98, 3450280), (112, 3018995), (140, 2415196), (196, 1725140), (245, 1380112), (280, 1207598), (392, 862570), (490, 690056), (560, 603799), (784, 431285), (980, 345028), (1960, 172514), (3920, 86257)]