16556840

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4987}}^1$

素因数の和:5081

約数の個数: 32

約数和(自身を含む): 37709280

約数和(自身を除く): 21152440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 4987, 9974, 19948, 24935, 39896, 49870, 99740, 199480, 413921, 827842, 1655684, 2069605, 3311368, 4139210, 8278420, 16556840]

約数ペア:

[(1, 16556840), (2, 8278420), (4, 4139210), (5, 3311368), (8, 2069605), (10, 1655684), (20, 827842), (40, 413921), (83, 199480), (166, 99740), (332, 49870), (415, 39896), (664, 24935), (830, 19948), (1660, 9974), (3320, 4987)]