2040540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 5806080

約数和(自身を除く): 3765540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 479, 710, 852, 958, 1065, 1420, 1437, 1916, 2130, 2395, 2874, 4260, 4790, 5748, 7185, 9580, 14370, 28740, 34009, 68018, 102027, 136036, 170045, 204054, 340090, 408108, 510135, 680180, 1020270, 2040540]

約数ペア:

[(1, 2040540), (2, 1020270), (3, 680180), (4, 510135), (5, 408108), (6, 340090), (10, 204054), (12, 170045), (15, 136036), (20, 102027), (30, 68018), (60, 34009), (71, 28740), (142, 14370), (213, 9580), (284, 7185), (355, 5748), (426, 4790), (479, 4260), (710, 2874), (852, 2395), (958, 2130), (1065, 1916), (1420, 1437)]