81409736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8431}}^1$

素因数の和:8525

約数の個数: 32

約数和(自身を含む): 163918080

約数和(自身を除く): 82508344

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 568, 1207, 2414, 4828, 8431, 9656, 16862, 33724, 67448, 143327, 286654, 573308, 598601, 1146616, 1197202, 2394404, 4788808, 10176217, 20352434, 40704868, 81409736]

約数ペア:

[(1, 81409736), (2, 40704868), (4, 20352434), (8, 10176217), (17, 4788808), (34, 2394404), (68, 1197202), (71, 1146616), (136, 598601), (142, 573308), (284, 286654), (568, 143327), (1207, 67448), (2414, 33724), (4828, 16862), (8431, 9656)]