87777080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21727}}^1$

素因数の和:21839

約数の個数: 32

約数和(自身を含む): 199463040

約数和(自身を除く): 111685960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 21727, 43454, 86908, 108635, 173816, 217270, 434540, 869080, 2194427, 4388854, 8777708, 10972135, 17555416, 21944270, 43888540, 87777080]

約数ペア:

[(1, 87777080), (2, 43888540), (4, 21944270), (5, 17555416), (8, 10972135), (10, 8777708), (20, 4388854), (40, 2194427), (101, 869080), (202, 434540), (404, 217270), (505, 173816), (808, 108635), (1010, 86908), (2020, 43454), (4040, 21727)]