28536560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1193}}^1$

素因数の和:1242

約数の個数: 80

約数和(自身を含む): 74620224

約数和(自身を除く): 46083664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1193, 1196, 1495, 1840, 2386, 2392, 2990, 4772, 4784, 5965, 5980, 9544, 11930, 11960, 15509, 19088, 23860, 23920, 27439, 31018, 47720, 54878, 62036, 77545, 95440, 109756, 124072, 137195, 155090, 219512, 248144, 274390, 310180, 356707, 439024, 548780, 620360, 713414, 1097560, 1240720, 1426828, 1783535, 2195120, 2853656, 3567070, 5707312, 7134140, 14268280, 28536560]

約数ペア:

[(1, 28536560), (2, 14268280), (4, 7134140), (5, 5707312), (8, 3567070), (10, 2853656), (13, 2195120), (16, 1783535), (20, 1426828), (23, 1240720), (26, 1097560), (40, 713414), (46, 620360), (52, 548780), (65, 439024), (80, 356707), (92, 310180), (104, 274390), (115, 248144), (130, 219512), (184, 155090), (208, 137195), (230, 124072), (260, 109756), (299, 95440), (368, 77545), (460, 62036), (520, 54878), (598, 47720), (920, 31018), (1040, 27439), (1193, 23920), (1196, 23860), (1495, 19088), (1840, 15509), (2386, 11960), (2392, 11930), (2990, 9544), (4772, 5980), (4784, 5965)]