81583760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{439}}^1$

素因数の和:576

約数の個数: 80

約数和(自身を含む): 200344320

約数和(自身を除く): 118760560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 101, 115, 184, 202, 230, 368, 404, 439, 460, 505, 808, 878, 920, 1010, 1616, 1756, 1840, 2020, 2195, 2323, 3512, 4040, 4390, 4646, 7024, 8080, 8780, 9292, 10097, 11615, 17560, 18584, 20194, 23230, 35120, 37168, 40388, 44339, 46460, 50485, 80776, 88678, 92920, 100970, 161552, 177356, 185840, 201940, 221695, 354712, 403880, 443390, 709424, 807760, 886780, 1019797, 1773560, 2039594, 3547120, 4079188, 5098985, 8158376, 10197970, 16316752, 20395940, 40791880, 81583760]

約数ペア:

[(1, 81583760), (2, 40791880), (4, 20395940), (5, 16316752), (8, 10197970), (10, 8158376), (16, 5098985), (20, 4079188), (23, 3547120), (40, 2039594), (46, 1773560), (80, 1019797), (92, 886780), (101, 807760), (115, 709424), (184, 443390), (202, 403880), (230, 354712), (368, 221695), (404, 201940), (439, 185840), (460, 177356), (505, 161552), (808, 100970), (878, 92920), (920, 88678), (1010, 80776), (1616, 50485), (1756, 46460), (1840, 44339), (2020, 40388), (2195, 37168), (2323, 35120), (3512, 23230), (4040, 20194), (4390, 18584), (4646, 17560), (7024, 11615), (8080, 10097), (8780, 9292)]