217356720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{129379}}^1$

素因数の和:129402

約数の個数: 80

約数和(自身を含む): 770069760

約数和(自身を除く): 552713040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 129379, 258758, 388137, 517516, 646895, 776274, 905653, 1035032, 1293790, 1552548, 1811306, 1940685, 2070064, 2587580, 2716959, 3105096, 3622612, 3881370, 4528265, 5175160, 5433918, 6210192, 7245224, 7762740, 9056530, 10350320, 10867836, 13584795, 14490448, 15525480, 18113060, 21735672, 27169590, 31050960, 36226120, 43471344, 54339180, 72452240, 108678360, 217356720]

約数ペア:

[(1, 217356720), (2, 108678360), (3, 72452240), (4, 54339180), (5, 43471344), (6, 36226120), (7, 31050960), (8, 27169590), (10, 21735672), (12, 18113060), (14, 15525480), (15, 14490448), (16, 13584795), (20, 10867836), (21, 10350320), (24, 9056530), (28, 7762740), (30, 7245224), (35, 6210192), (40, 5433918), (42, 5175160), (48, 4528265), (56, 3881370), (60, 3622612), (70, 3105096), (80, 2716959), (84, 2587580), (105, 2070064), (112, 1940685), (120, 1811306), (140, 1552548), (168, 1293790), (210, 1035032), (240, 905653), (280, 776274), (336, 646895), (420, 517516), (560, 388137), (840, 258758), (1680, 129379)]