394885100

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{28409}}^1$

素因数の和:28562

約数の個数: 36

約数和(自身を含む): 863095800

約数和(自身を除く): 468210700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2780, 3475, 6950, 13900, 28409, 56818, 113636, 142045, 284090, 568180, 710225, 1420450, 2840900, 3948851, 7897702, 15795404, 19744255, 39488510, 78977020, 98721275, 197442550, 394885100]

約数ペア:

[(1, 394885100), (2, 197442550), (4, 98721275), (5, 78977020), (10, 39488510), (20, 19744255), (25, 15795404), (50, 7897702), (100, 3948851), (139, 2840900), (278, 1420450), (556, 710225), (695, 568180), (1390, 284090), (2780, 142045), (3475, 113636), (6950, 56818), (13900, 28409)]