287261280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{199487}}^1$

素因数の和:199508

約数の個数: 72

約数和(自身を含む): 980284032

約数和(自身を除く): 693022752

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, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 199487, 398974, 598461, 797948, 997435, 1196922, 1595896, 1795383, 1994870, 2393844, 2992305, 3191792, 3590766, 3989740, 4787688, 5984610, 6383584, 7181532, 7979480, 8976915, 9575376, 11969220, 14363064, 15958960, 17953830, 19150752, 23938440, 28726128, 31917920, 35907660, 47876880, 57452256, 71815320, 95753760, 143630640, 287261280]

約数ペア:

[(1, 287261280), (2, 143630640), (3, 95753760), (4, 71815320), (5, 57452256), (6, 47876880), (8, 35907660), (9, 31917920), (10, 28726128), (12, 23938440), (15, 19150752), (16, 17953830), (18, 15958960), (20, 14363064), (24, 11969220), (30, 9575376), (32, 8976915), (36, 7979480), (40, 7181532), (45, 6383584), (48, 5984610), (60, 4787688), (72, 3989740), (80, 3590766), (90, 3191792), (96, 2992305), (120, 2393844), (144, 1994870), (160, 1795383), (180, 1595896), (240, 1196922), (288, 997435), (360, 797948), (480, 598461), (720, 398974), (1440, 199487)]