28472720

素因数分解:

$2^4\times 5^1\times {\mathrm{355909}}^1$

素因数の和:355922

約数の個数: 20

約数和(自身を含む): 66199260

約数和(自身を除く): 37726540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355909, 711818, 1423636, 1779545, 2847272, 3559090, 5694544, 7118180, 14236360, 28472720]

約数ペア:

[(1, 28472720), (2, 14236360), (4, 7118180), (5, 5694544), (8, 3559090), (10, 2847272), (16, 1779545), (20, 1423636), (40, 711818), (80, 355909)]