2720720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 6428160

約数和(自身を除く): 3707440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 479, 568, 710, 958, 1136, 1420, 1916, 2395, 2840, 3832, 4790, 5680, 7664, 9580, 19160, 34009, 38320, 68018, 136036, 170045, 272072, 340090, 544144, 680180, 1360360, 2720720]

約数ペア:

[(1, 2720720), (2, 1360360), (4, 680180), (5, 544144), (8, 340090), (10, 272072), (16, 170045), (20, 136036), (40, 68018), (71, 38320), (80, 34009), (142, 19160), (284, 9580), (355, 7664), (479, 5680), (568, 4790), (710, 3832), (958, 2840), (1136, 2395), (1420, 1916)]