26128840

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1559}}^1$

素因数の和:1989

約数の個数: 32

約数和(自身を含む): 58968000

約数和(自身を除く): 32839160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1559, 1676, 2095, 3118, 3352, 4190, 6236, 7795, 8380, 12472, 15590, 16760, 31180, 62360, 653221, 1306442, 2612884, 3266105, 5225768, 6532210, 13064420, 26128840]

約数ペア:

[(1, 26128840), (2, 13064420), (4, 6532210), (5, 5225768), (8, 3266105), (10, 2612884), (20, 1306442), (40, 653221), (419, 62360), (838, 31180), (1559, 16760), (1676, 15590), (2095, 12472), (3118, 8380), (3352, 7795), (4190, 6236)]