16874620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 42000336

約数和(自身を除く): 25125716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 257, 268, 335, 469, 490, 514, 670, 938, 980, 1028, 1285, 1340, 1799, 1876, 2345, 2570, 3283, 3598, 4690, 5140, 6566, 7196, 8995, 9380, 12593, 13132, 16415, 17219, 17990, 25186, 32830, 34438, 35980, 50372, 62965, 65660, 68876, 86095, 120533, 125930, 172190, 241066, 251860, 344380, 482132, 602665, 843731, 1205330, 1687462, 2410660, 3374924, 4218655, 8437310, 16874620]

約数ペア:

[(1, 16874620), (2, 8437310), (4, 4218655), (5, 3374924), (7, 2410660), (10, 1687462), (14, 1205330), (20, 843731), (28, 602665), (35, 482132), (49, 344380), (67, 251860), (70, 241066), (98, 172190), (134, 125930), (140, 120533), (196, 86095), (245, 68876), (257, 65660), (268, 62965), (335, 50372), (469, 35980), (490, 34438), (514, 32830), (670, 25186), (938, 17990), (980, 17219), (1028, 16415), (1285, 13132), (1340, 12593), (1799, 9380), (1876, 8995), (2345, 7196), (2570, 6566), (3283, 5140), (3598, 4690)]