20171102720

素因数分解:

$2^9\times 5^1\times {\mathrm{2477}}^1\times {\mathrm{3181}}^1$

素因数の和:5681

約数の個数: 80

約数和(自身を含む): 48398105448

約数和(自身を除く): 28227002728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2477, 2560, 3181, 4954, 6362, 9908, 12385, 12724, 15905, 19816, 24770, 25448, 31810, 39632, 49540, 50896, 63620, 79264, 99080, 101792, 127240, 158528, 198160, 203584, 254480, 317056, 396320, 407168, 508960, 634112, 792640, 814336, 1017920, 1268224, 1585280, 1628672, 2035840, 3170560, 4071680, 6341120, 7879337, 8143360, 15758674, 31517348, 39396685, 63034696, 78793370, 126069392, 157586740, 252138784, 315173480, 504277568, 630346960, 1008555136, 1260693920, 2017110272, 2521387840, 4034220544, 5042775680, 10085551360, 20171102720]

約数ペア:

[(1, 20171102720), (2, 10085551360), (4, 5042775680), (5, 4034220544), (8, 2521387840), (10, 2017110272), (16, 1260693920), (20, 1008555136), (32, 630346960), (40, 504277568), (64, 315173480), (80, 252138784), (128, 157586740), (160, 126069392), (256, 78793370), (320, 63034696), (512, 39396685), (640, 31517348), (1280, 15758674), (2477, 8143360), (2560, 7879337), (3181, 6341120), (4954, 4071680), (6362, 3170560), (9908, 2035840), (12385, 1628672), (12724, 1585280), (15905, 1268224), (19816, 1017920), (24770, 814336), (25448, 792640), (31810, 634112), (39632, 508960), (49540, 407168), (50896, 396320), (63620, 317056), (79264, 254480), (99080, 203584), (101792, 198160), (127240, 158528)]