51358880

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1249}}^1$

素因数の和:1521

約数の個数: 48

約数和(自身を含む): 121905000

約数和(自身を除く): 70546120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1249, 1285, 2056, 2498, 2570, 4112, 4996, 5140, 6245, 8224, 9992, 10280, 12490, 19984, 20560, 24980, 39968, 41120, 49960, 99920, 199840, 320993, 641986, 1283972, 1604965, 2567944, 3209930, 5135888, 6419860, 10271776, 12839720, 25679440, 51358880]

約数ペア:

[(1, 51358880), (2, 25679440), (4, 12839720), (5, 10271776), (8, 6419860), (10, 5135888), (16, 3209930), (20, 2567944), (32, 1604965), (40, 1283972), (80, 641986), (160, 320993), (257, 199840), (514, 99920), (1028, 49960), (1249, 41120), (1285, 39968), (2056, 24980), (2498, 20560), (2570, 19984), (4112, 12490), (4996, 10280), (5140, 9992), (6245, 8224)]