85139440

素因数分解:

$2^4\times 5^1\times {\mathrm{1064243}}^1$

素因数の和:1064256

約数の個数: 20

約数和(自身を含む): 197949384

約数和(自身を除く): 112809944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1064243, 2128486, 4256972, 5321215, 8513944, 10642430, 17027888, 21284860, 42569720, 85139440]

約数ペア:

[(1, 85139440), (2, 42569720), (4, 21284860), (5, 17027888), (8, 10642430), (10, 8513944), (16, 5321215), (20, 4256972), (40, 2128486), (80, 1064243)]