20090945

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18517}}^1$

素因数の和:18560

約数の個数: 16

約数和(自身を含む): 28443648

約数和(自身を除く): 8352703

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18517, 92585, 129619, 574027, 648095, 2870135, 4018189, 20090945]

約数ペア:

[(1, 20090945), (5, 4018189), (7, 2870135), (31, 648095), (35, 574027), (155, 129619), (217, 92585), (1085, 18517)]