16356880

素因数分解:

$2^4\times 5^1\times {\mathrm{204461}}^1$

素因数の和:204474

約数の個数: 20

約数和(自身を含む): 38029932

約数和(自身を除く): 21673052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 204461, 408922, 817844, 1022305, 1635688, 2044610, 3271376, 4089220, 8178440, 16356880]

約数ペア:

[(1, 16356880), (2, 8178440), (4, 4089220), (5, 3271376), (8, 2044610), (10, 1635688), (16, 1022305), (20, 817844), (40, 408922), (80, 204461)]