890666240

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5479}}^1$

素因数の和:5627

約数の個数: 72

約数和(自身を含む): 2150615040

約数和(自身を除く): 1259948800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1016, 1270, 1280, 2032, 2540, 4064, 5080, 5479, 8128, 10160, 10958, 16256, 20320, 21916, 27395, 32512, 40640, 43832, 54790, 81280, 87664, 109580, 162560, 175328, 219160, 350656, 438320, 695833, 701312, 876640, 1391666, 1402624, 1753280, 2783332, 3479165, 3506560, 5566664, 6958330, 7013120, 11133328, 13916660, 22266656, 27833320, 44533312, 55666640, 89066624, 111333280, 178133248, 222666560, 445333120, 890666240]

約数ペア:

[(1, 890666240), (2, 445333120), (4, 222666560), (5, 178133248), (8, 111333280), (10, 89066624), (16, 55666640), (20, 44533312), (32, 27833320), (40, 22266656), (64, 13916660), (80, 11133328), (127, 7013120), (128, 6958330), (160, 5566664), (254, 3506560), (256, 3479165), (320, 2783332), (508, 1753280), (635, 1402624), (640, 1391666), (1016, 876640), (1270, 701312), (1280, 695833), (2032, 438320), (2540, 350656), (4064, 219160), (5080, 175328), (5479, 162560), (8128, 109580), (10160, 87664), (10958, 81280), (16256, 54790), (20320, 43832), (21916, 40640), (27395, 32512)]