21745440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{15101}}^1$

素因数の和:15122

約数の個数: 72

約数和(自身を含む): 74211228

約数和(自身を除く): 52465788

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, 15101, 30202, 45303, 60404, 75505, 90606, 120808, 135909, 151010, 181212, 226515, 241616, 271818, 302020, 362424, 453030, 483232, 543636, 604040, 679545, 724848, 906060, 1087272, 1208080, 1359090, 1449696, 1812120, 2174544, 2416160, 2718180, 3624240, 4349088, 5436360, 7248480, 10872720, 21745440]

約数ペア:

[(1, 21745440), (2, 10872720), (3, 7248480), (4, 5436360), (5, 4349088), (6, 3624240), (8, 2718180), (9, 2416160), (10, 2174544), (12, 1812120), (15, 1449696), (16, 1359090), (18, 1208080), (20, 1087272), (24, 906060), (30, 724848), (32, 679545), (36, 604040), (40, 543636), (45, 483232), (48, 453030), (60, 362424), (72, 302020), (80, 271818), (90, 241616), (96, 226515), (120, 181212), (144, 151010), (160, 135909), (180, 120808), (240, 90606), (288, 75505), (360, 60404), (480, 45303), (720, 30202), (1440, 15101)]