240821840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2161}}^1$

素因数の和:2380

約数の個数: 80

約数和(自身を含む): 643411200

約数和(自身を除く): 402589360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 398, 560, 796, 995, 1393, 1592, 1990, 2161, 2786, 3184, 3980, 4322, 5572, 6965, 7960, 8644, 10805, 11144, 13930, 15127, 15920, 17288, 21610, 22288, 27860, 30254, 34576, 43220, 55720, 60508, 75635, 86440, 111440, 121016, 151270, 172880, 242032, 302540, 430039, 605080, 860078, 1210160, 1720156, 2150195, 3010273, 3440312, 4300390, 6020546, 6880624, 8600780, 12041092, 15051365, 17201560, 24082184, 30102730, 34403120, 48164368, 60205460, 120410920, 240821840]

約数ペア:

[(1, 240821840), (2, 120410920), (4, 60205460), (5, 48164368), (7, 34403120), (8, 30102730), (10, 24082184), (14, 17201560), (16, 15051365), (20, 12041092), (28, 8600780), (35, 6880624), (40, 6020546), (56, 4300390), (70, 3440312), (80, 3010273), (112, 2150195), (140, 1720156), (199, 1210160), (280, 860078), (398, 605080), (560, 430039), (796, 302540), (995, 242032), (1393, 172880), (1592, 151270), (1990, 121016), (2161, 111440), (2786, 86440), (3184, 75635), (3980, 60508), (4322, 55720), (5572, 43220), (6965, 34576), (7960, 30254), (8644, 27860), (10805, 22288), (11144, 21610), (13930, 17288), (15127, 15920)]