90130720

素因数分解:

$2^5\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1307}}^1$

素因数の和:1753

約数の個数: 48

約数和(自身を含む): 213591168

約数和(自身を除く): 123460448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 431, 862, 1307, 1724, 2155, 2614, 3448, 4310, 5228, 6535, 6896, 8620, 10456, 13070, 13792, 17240, 20912, 26140, 34480, 41824, 52280, 68960, 104560, 209120, 563317, 1126634, 2253268, 2816585, 4506536, 5633170, 9013072, 11266340, 18026144, 22532680, 45065360, 90130720]

約数ペア:

[(1, 90130720), (2, 45065360), (4, 22532680), (5, 18026144), (8, 11266340), (10, 9013072), (16, 5633170), (20, 4506536), (32, 2816585), (40, 2253268), (80, 1126634), (160, 563317), (431, 209120), (862, 104560), (1307, 68960), (1724, 52280), (2155, 41824), (2614, 34480), (3448, 26140), (4310, 20912), (5228, 17240), (6535, 13792), (6896, 13070), (8620, 10456)]