81590940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23857}}^1$

素因数の和:23891

約数の個数: 72

約数和(自身を含む): 260529360

約数和(自身を除く): 178938420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23857, 47714, 71571, 95428, 119285, 143142, 214713, 238570, 286284, 357855, 429426, 453283, 477140, 715710, 858852, 906566, 1073565, 1359849, 1431420, 1813132, 2147130, 2266415, 2719698, 4079547, 4294260, 4532830, 5439396, 6799245, 8159094, 9065660, 13598490, 16318188, 20397735, 27196980, 40795470, 81590940]

約数ペア:

[(1, 81590940), (2, 40795470), (3, 27196980), (4, 20397735), (5, 16318188), (6, 13598490), (9, 9065660), (10, 8159094), (12, 6799245), (15, 5439396), (18, 4532830), (19, 4294260), (20, 4079547), (30, 2719698), (36, 2266415), (38, 2147130), (45, 1813132), (57, 1431420), (60, 1359849), (76, 1073565), (90, 906566), (95, 858852), (114, 715710), (171, 477140), (180, 453283), (190, 429426), (228, 357855), (285, 286284), (342, 238570), (380, 214713), (570, 143142), (684, 119285), (855, 95428), (1140, 71571), (1710, 47714), (3420, 23857)]