126840020

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{7559}}^1$

素因数の和:8407

約数の個数: 24

約数和(自身を含む): 266716800

約数和(自身を除く): 139876780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1678, 3356, 4195, 7559, 8390, 15118, 16780, 30236, 37795, 75590, 151180, 6342001, 12684002, 25368004, 31710005, 63420010, 126840020]

約数ペア:

[(1, 126840020), (2, 63420010), (4, 31710005), (5, 25368004), (10, 12684002), (20, 6342001), (839, 151180), (1678, 75590), (3356, 37795), (4195, 30236), (7559, 16780), (8390, 15118)]