20005904

素因数分解:

$2^4\times {\mathrm{367}}^1\times {\mathrm{3407}}^1$

素因数の和:3782

約数の個数: 20

約数和(自身を含む): 38878464

約数和(自身を除く): 18872560

約数列:

[1, 2, 4, 8, 16, 367, 734, 1468, 2936, 3407, 5872, 6814, 13628, 27256, 54512, 1250369, 2500738, 5001476, 10002952, 20005904]

約数ペア:

[(1, 20005904), (2, 10002952), (4, 5001476), (8, 2500738), (16, 1250369), (367, 54512), (734, 27256), (1468, 13628), (2936, 6814), (3407, 5872)]