8278420

素因数分解:

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

素因数の和:5079

約数の個数: 24

約数和(自身を含む): 17597664

約数和(自身を除く): 9319244

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 4987, 9974, 19948, 24935, 49870, 99740, 413921, 827842, 1655684, 2069605, 4139210, 8278420]

約数ペア:

[(1, 8278420), (2, 4139210), (4, 2069605), (5, 1655684), (10, 827842), (20, 413921), (83, 99740), (166, 49870), (332, 24935), (415, 19948), (830, 9974), (1660, 4987)]