82420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 186984

約数和(自身を除く): 104564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 634, 1268, 1585, 3170, 4121, 6340, 8242, 16484, 20605, 41210, 82420]

約数ペア:

[(1, 82420), (2, 41210), (4, 20605), (5, 16484), (10, 8242), (13, 6340), (20, 4121), (26, 3170), (52, 1585), (65, 1268), (130, 634), (260, 317)]