39780220

素因数分解:

$2^2\times 5^1\times {\mathrm{743}}^1\times {\mathrm{2677}}^1$

素因数の和:3429

約数の個数: 24

約数和(自身を含む): 83682144

約数和(自身を除く): 43901924

約数列:

[1, 2, 4, 5, 10, 20, 743, 1486, 2677, 2972, 3715, 5354, 7430, 10708, 13385, 14860, 26770, 53540, 1989011, 3978022, 7956044, 9945055, 19890110, 39780220]

約数ペア:

[(1, 39780220), (2, 19890110), (4, 9945055), (5, 7956044), (10, 3978022), (20, 1989011), (743, 53540), (1486, 26770), (2677, 14860), (2972, 13385), (3715, 10708), (5354, 7430)]