19950440

素因数分解:

$2^3\times 5^1\times {\mathrm{498761}}^1$

素因数の和:498772

約数の個数: 16

約数和(自身を含む): 44888580

約数和(自身を除く): 24938140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 498761, 997522, 1995044, 2493805, 3990088, 4987610, 9975220, 19950440]

約数ペア:

[(1, 19950440), (2, 9975220), (4, 4987610), (5, 3990088), (8, 2493805), (10, 1995044), (20, 997522), (40, 498761)]