20566168

素因数分解:

$2^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1429}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 44272800

約数和(自身を除く): 23706632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 257, 514, 1028, 1429, 1799, 2056, 2858, 3598, 5716, 7196, 10003, 11432, 14392, 20006, 40012, 80024, 367253, 734506, 1469012, 2570771, 2938024, 5141542, 10283084, 20566168]

約数ペア:

[(1, 20566168), (2, 10283084), (4, 5141542), (7, 2938024), (8, 2570771), (14, 1469012), (28, 734506), (56, 367253), (257, 80024), (514, 40012), (1028, 20006), (1429, 14392), (1799, 11432), (2056, 10003), (2858, 7196), (3598, 5716)]