2678120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 6531840

約数和(自身を除く): 3853720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 71, 82, 92, 115, 142, 164, 184, 205, 230, 284, 328, 355, 410, 460, 568, 710, 820, 920, 943, 1420, 1633, 1640, 1886, 2840, 2911, 3266, 3772, 4715, 5822, 6532, 7544, 8165, 9430, 11644, 13064, 14555, 16330, 18860, 23288, 29110, 32660, 37720, 58220, 65320, 66953, 116440, 133906, 267812, 334765, 535624, 669530, 1339060, 2678120]

約数ペア:

[(1, 2678120), (2, 1339060), (4, 669530), (5, 535624), (8, 334765), (10, 267812), (20, 133906), (23, 116440), (40, 66953), (41, 65320), (46, 58220), (71, 37720), (82, 32660), (92, 29110), (115, 23288), (142, 18860), (164, 16330), (184, 14555), (205, 13064), (230, 11644), (284, 9430), (328, 8165), (355, 7544), (410, 6532), (460, 5822), (568, 4715), (710, 3772), (820, 3266), (920, 2911), (943, 2840), (1420, 1886), (1633, 1640)]