28942560

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:321

約数の個数: 144

約数和(自身を含む): 100245600

約数和(自身を除く): 71303040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 101, 120, 144, 160, 180, 199, 202, 240, 288, 303, 360, 398, 404, 480, 505, 597, 606, 720, 796, 808, 909, 995, 1010, 1194, 1212, 1440, 1515, 1592, 1616, 1791, 1818, 1990, 2020, 2388, 2424, 2985, 3030, 3184, 3232, 3582, 3636, 3980, 4040, 4545, 4776, 4848, 5970, 6060, 6368, 7164, 7272, 7960, 8080, 8955, 9090, 9552, 9696, 11940, 12120, 14328, 14544, 15920, 16160, 17910, 18180, 19104, 20099, 23880, 24240, 28656, 29088, 31840, 35820, 36360, 40198, 47760, 48480, 57312, 60297, 71640, 72720, 80396, 95520, 100495, 120594, 143280, 145440, 160792, 180891, 200990, 241188, 286560, 301485, 321584, 361782, 401980, 482376, 602970, 643168, 723564, 803960, 904455, 964752, 1205940, 1447128, 1607920, 1808910, 1929504, 2411880, 2894256, 3215840, 3617820, 4823760, 5788512, 7235640, 9647520, 14471280, 28942560]

約数ペア:

[(1, 28942560), (2, 14471280), (3, 9647520), (4, 7235640), (5, 5788512), (6, 4823760), (8, 3617820), (9, 3215840), (10, 2894256), (12, 2411880), (15, 1929504), (16, 1808910), (18, 1607920), (20, 1447128), (24, 1205940), (30, 964752), (32, 904455), (36, 803960), (40, 723564), (45, 643168), (48, 602970), (60, 482376), (72, 401980), (80, 361782), (90, 321584), (96, 301485), (101, 286560), (120, 241188), (144, 200990), (160, 180891), (180, 160792), (199, 145440), (202, 143280), (240, 120594), (288, 100495), (303, 95520), (360, 80396), (398, 72720), (404, 71640), (480, 60297), (505, 57312), (597, 48480), (606, 47760), (720, 40198), (796, 36360), (808, 35820), (909, 31840), (995, 29088), (1010, 28656), (1194, 24240), (1212, 23880), (1440, 20099), (1515, 19104), (1592, 18180), (1616, 17910), (1791, 16160), (1818, 15920), (1990, 14544), (2020, 14328), (2388, 12120), (2424, 11940), (2985, 9696), (3030, 9552), (3184, 9090), (3232, 8955), (3582, 8080), (3636, 7960), (3980, 7272), (4040, 7164), (4545, 6368), (4776, 6060), (4848, 5970)]