21961440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:273

約数の個数: 144

約数和(自身を含む): 76186656

約数和(自身を除く): 54225216

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, 151, 160, 180, 202, 240, 288, 302, 303, 360, 404, 453, 480, 505, 604, 606, 720, 755, 808, 906, 909, 1010, 1208, 1212, 1359, 1440, 1510, 1515, 1616, 1812, 1818, 2020, 2265, 2416, 2424, 2718, 3020, 3030, 3232, 3624, 3636, 4040, 4530, 4545, 4832, 4848, 5436, 6040, 6060, 6795, 7248, 7272, 8080, 9060, 9090, 9696, 10872, 12080, 12120, 13590, 14496, 14544, 15251, 16160, 18120, 18180, 21744, 24160, 24240, 27180, 29088, 30502, 36240, 36360, 43488, 45753, 48480, 54360, 61004, 72480, 72720, 76255, 91506, 108720, 122008, 137259, 145440, 152510, 183012, 217440, 228765, 244016, 274518, 305020, 366024, 457530, 488032, 549036, 610040, 686295, 732048, 915060, 1098072, 1220080, 1372590, 1464096, 1830120, 2196144, 2440160, 2745180, 3660240, 4392288, 5490360, 7320480, 10980720, 21961440]

約数ペア:

[(1, 21961440), (2, 10980720), (3, 7320480), (4, 5490360), (5, 4392288), (6, 3660240), (8, 2745180), (9, 2440160), (10, 2196144), (12, 1830120), (15, 1464096), (16, 1372590), (18, 1220080), (20, 1098072), (24, 915060), (30, 732048), (32, 686295), (36, 610040), (40, 549036), (45, 488032), (48, 457530), (60, 366024), (72, 305020), (80, 274518), (90, 244016), (96, 228765), (101, 217440), (120, 183012), (144, 152510), (151, 145440), (160, 137259), (180, 122008), (202, 108720), (240, 91506), (288, 76255), (302, 72720), (303, 72480), (360, 61004), (404, 54360), (453, 48480), (480, 45753), (505, 43488), (604, 36360), (606, 36240), (720, 30502), (755, 29088), (808, 27180), (906, 24240), (909, 24160), (1010, 21744), (1208, 18180), (1212, 18120), (1359, 16160), (1440, 15251), (1510, 14544), (1515, 14496), (1616, 13590), (1812, 12120), (1818, 12080), (2020, 10872), (2265, 9696), (2416, 9090), (2424, 9060), (2718, 8080), (3020, 7272), (3030, 7248), (3232, 6795), (3624, 6060), (3636, 6040), (4040, 5436), (4530, 4848), (4545, 4832)]