18785940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{13613}}^1$

素因数の和:13648

約数の個数: 48

約数和(自身を含む): 54891648

約数和(自身を除く): 36105708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 13613, 27226, 40839, 54452, 68065, 81678, 136130, 163356, 204195, 272260, 313099, 408390, 626198, 816780, 939297, 1252396, 1565495, 1878594, 3130990, 3757188, 4696485, 6261980, 9392970, 18785940]

約数ペア:

[(1, 18785940), (2, 9392970), (3, 6261980), (4, 4696485), (5, 3757188), (6, 3130990), (10, 1878594), (12, 1565495), (15, 1252396), (20, 939297), (23, 816780), (30, 626198), (46, 408390), (60, 313099), (69, 272260), (92, 204195), (115, 163356), (138, 136130), (230, 81678), (276, 68065), (345, 54452), (460, 40839), (690, 27226), (1380, 13613)]