28219640

素因数分解:

$2^3\times 5^1\times {\mathrm{705491}}^1$

素因数の和:705502

約数の個数: 16

約数和(自身を含む): 63494280

約数和(自身を除く): 35274640

約数列:

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

約数ペア:

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