5215640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1291}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 11860560

約数和(自身を除く): 6644920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 1291, 2020, 2582, 4040, 5164, 6455, 10328, 12910, 25820, 51640, 130391, 260782, 521564, 651955, 1043128, 1303910, 2607820, 5215640]

約数ペア:

[(1, 5215640), (2, 2607820), (4, 1303910), (5, 1043128), (8, 651955), (10, 521564), (20, 260782), (40, 130391), (101, 51640), (202, 25820), (404, 12910), (505, 10328), (808, 6455), (1010, 5164), (1291, 4040), (2020, 2582)]