79139440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13933}}^1$

素因数の和:14017

約数の個数: 40

約数和(自身を含む): 186604128

約数和(自身を除く): 107464688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 13933, 27866, 55732, 69665, 111464, 139330, 222928, 278660, 557320, 989243, 1114640, 1978486, 3956972, 4946215, 7913944, 9892430, 15827888, 19784860, 39569720, 79139440]

約数ペア:

[(1, 79139440), (2, 39569720), (4, 19784860), (5, 15827888), (8, 9892430), (10, 7913944), (16, 4946215), (20, 3956972), (40, 1978486), (71, 1114640), (80, 989243), (142, 557320), (284, 278660), (355, 222928), (568, 139330), (710, 111464), (1136, 69665), (1420, 55732), (2840, 27866), (5680, 13933)]