216720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1$

素因数の和:69

約数の個数: 120

約数和(自身を含む): 851136

約数和(自身を除く): 634416

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 43, 45, 48, 56, 60, 63, 70, 72, 80, 84, 86, 90, 105, 112, 120, 126, 129, 140, 144, 168, 172, 180, 210, 215, 240, 252, 258, 280, 301, 315, 336, 344, 360, 387, 420, 430, 504, 516, 560, 602, 630, 645, 688, 720, 774, 840, 860, 903, 1008, 1032, 1204, 1260, 1290, 1505, 1548, 1680, 1720, 1806, 1935, 2064, 2408, 2520, 2580, 2709, 3010, 3096, 3440, 3612, 3870, 4515, 4816, 5040, 5160, 5418, 6020, 6192, 7224, 7740, 9030, 10320, 10836, 12040, 13545, 14448, 15480, 18060, 21672, 24080, 27090, 30960, 36120, 43344, 54180, 72240, 108360, 216720]

約数ペア:

[(1, 216720), (2, 108360), (3, 72240), (4, 54180), (5, 43344), (6, 36120), (7, 30960), (8, 27090), (9, 24080), (10, 21672), (12, 18060), (14, 15480), (15, 14448), (16, 13545), (18, 12040), (20, 10836), (21, 10320), (24, 9030), (28, 7740), (30, 7224), (35, 6192), (36, 6020), (40, 5418), (42, 5160), (43, 5040), (45, 4816), (48, 4515), (56, 3870), (60, 3612), (63, 3440), (70, 3096), (72, 3010), (80, 2709), (84, 2580), (86, 2520), (90, 2408), (105, 2064), (112, 1935), (120, 1806), (126, 1720), (129, 1680), (140, 1548), (144, 1505), (168, 1290), (172, 1260), (180, 1204), (210, 1032), (215, 1008), (240, 903), (252, 860), (258, 840), (280, 774), (301, 720), (315, 688), (336, 645), (344, 630), (360, 602), (387, 560), (420, 516), (430, 504)]