662560

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 1619352

約数和(自身を除く): 956792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 101, 160, 164, 202, 205, 328, 404, 410, 505, 656, 808, 820, 1010, 1312, 1616, 1640, 2020, 3232, 3280, 4040, 4141, 6560, 8080, 8282, 16160, 16564, 20705, 33128, 41410, 66256, 82820, 132512, 165640, 331280, 662560]

約数ペア:

[(1, 662560), (2, 331280), (4, 165640), (5, 132512), (8, 82820), (10, 66256), (16, 41410), (20, 33128), (32, 20705), (40, 16564), (41, 16160), (80, 8282), (82, 8080), (101, 6560), (160, 4141), (164, 4040), (202, 3280), (205, 3232), (328, 2020), (404, 1640), (410, 1616), (505, 1312), (656, 1010), (808, 820)]