28988280

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:435

約数の個数: 160

約数和(自身を含む): 101930400

約数和(自身を除く): 72942120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 81, 90, 92, 108, 115, 120, 135, 138, 162, 180, 184, 207, 216, 230, 270, 276, 324, 345, 360, 389, 405, 414, 460, 540, 552, 621, 648, 690, 778, 810, 828, 920, 1035, 1080, 1167, 1242, 1380, 1556, 1620, 1656, 1863, 1945, 2070, 2334, 2484, 2760, 3105, 3112, 3240, 3501, 3726, 3890, 4140, 4668, 4968, 5835, 6210, 7002, 7452, 7780, 8280, 8947, 9315, 9336, 10503, 11670, 12420, 14004, 14904, 15560, 17505, 17894, 18630, 21006, 23340, 24840, 26841, 28008, 31509, 35010, 35788, 37260, 42012, 44735, 46680, 52515, 53682, 63018, 70020, 71576, 74520, 80523, 84024, 89470, 105030, 107364, 126036, 134205, 140040, 157545, 161046, 178940, 210060, 214728, 241569, 252072, 268410, 315090, 322092, 357880, 402615, 420120, 483138, 536820, 630180, 644184, 724707, 805230, 966276, 1073640, 1207845, 1260360, 1449414, 1610460, 1932552, 2415690, 2898828, 3220920, 3623535, 4831380, 5797656, 7247070, 9662760, 14494140, 28988280]

約数ペア:

[(1, 28988280), (2, 14494140), (3, 9662760), (4, 7247070), (5, 5797656), (6, 4831380), (8, 3623535), (9, 3220920), (10, 2898828), (12, 2415690), (15, 1932552), (18, 1610460), (20, 1449414), (23, 1260360), (24, 1207845), (27, 1073640), (30, 966276), (36, 805230), (40, 724707), (45, 644184), (46, 630180), (54, 536820), (60, 483138), (69, 420120), (72, 402615), (81, 357880), (90, 322092), (92, 315090), (108, 268410), (115, 252072), (120, 241569), (135, 214728), (138, 210060), (162, 178940), (180, 161046), (184, 157545), (207, 140040), (216, 134205), (230, 126036), (270, 107364), (276, 105030), (324, 89470), (345, 84024), (360, 80523), (389, 74520), (405, 71576), (414, 70020), (460, 63018), (540, 53682), (552, 52515), (621, 46680), (648, 44735), (690, 42012), (778, 37260), (810, 35788), (828, 35010), (920, 31509), (1035, 28008), (1080, 26841), (1167, 24840), (1242, 23340), (1380, 21006), (1556, 18630), (1620, 17894), (1656, 17505), (1863, 15560), (1945, 14904), (2070, 14004), (2334, 12420), (2484, 11670), (2760, 10503), (3105, 9336), (3112, 9315), (3240, 8947), (3501, 8280), (3726, 7780), (3890, 7452), (4140, 7002), (4668, 6210), (4968, 5835)]