56439280

素因数分解:

$2^4\times 5^1\times {\mathrm{705491}}^1$

素因数の和:705504

約数の個数: 20

約数和(自身を含む): 131221512

約数和(自身を除く): 74782232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 705491, 1410982, 2821964, 3527455, 5643928, 7054910, 11287856, 14109820, 28219640, 56439280]

約数ペア:

[(1, 56439280), (2, 28219640), (4, 14109820), (5, 11287856), (8, 7054910), (10, 5643928), (16, 3527455), (20, 2821964), (40, 1410982), (80, 705491)]