309969020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{378011}}^1$

素因数の和:378061

約数の個数: 24

約数和(自身を含む): 666813168

約数和(自身を除く): 356844148

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 378011, 756022, 1512044, 1890055, 3780110, 7560220, 15498451, 30996902, 61993804, 77492255, 154984510, 309969020]

約数ペア:

[(1, 309969020), (2, 154984510), (4, 77492255), (5, 61993804), (10, 30996902), (20, 15498451), (41, 7560220), (82, 3780110), (164, 1890055), (205, 1512044), (410, 756022), (820, 378011)]