19876840

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5987}}^1$

素因数の和:6081

約数の個数: 32

約数和(自身を含む): 45269280

約数和(自身を除く): 25392440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 5987, 11974, 23948, 29935, 47896, 59870, 119740, 239480, 496921, 993842, 1987684, 2484605, 3975368, 4969210, 9938420, 19876840]

約数ペア:

[(1, 19876840), (2, 9938420), (4, 4969210), (5, 3975368), (8, 2484605), (10, 1987684), (20, 993842), (40, 496921), (83, 239480), (166, 119740), (332, 59870), (415, 47896), (664, 29935), (830, 23948), (1660, 11974), (3320, 5987)]