20808510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40801}}^1$

素因数の和:40828

約数の個数: 32

約数和(自身を含む): 52879392

約数和(自身を除く): 32070882

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 40801, 81602, 122403, 204005, 244806, 408010, 612015, 693617, 1224030, 1387234, 2080851, 3468085, 4161702, 6936170, 10404255, 20808510]

約数ペア:

[(1, 20808510), (2, 10404255), (3, 6936170), (5, 4161702), (6, 3468085), (10, 2080851), (15, 1387234), (17, 1224030), (30, 693617), (34, 612015), (51, 408010), (85, 244806), (102, 204005), (170, 122403), (255, 81602), (510, 40801)]