31288660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{9257}}^1$

素因数の和:9292

約数の個数: 36

約数和(自身を含む): 71156988

約数和(自身を除く): 39868328

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 9257, 18514, 37028, 46285, 92570, 120341, 185140, 240682, 481364, 601705, 1203410, 1564433, 2406820, 3128866, 6257732, 7822165, 15644330, 31288660]

約数ペア:

[(1, 31288660), (2, 15644330), (4, 7822165), (5, 6257732), (10, 3128866), (13, 2406820), (20, 1564433), (26, 1203410), (52, 601705), (65, 481364), (130, 240682), (169, 185140), (260, 120341), (338, 92570), (676, 46285), (845, 37028), (1690, 18514), (3380, 9257)]