82560020

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{26293}}^1$

素因数の和:26459

約数の個数: 24

約数和(自身を含む): 174486984

約数和(自身を除く): 91926964

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 26293, 52586, 105172, 131465, 262930, 525860, 4128001, 8256002, 16512004, 20640005, 41280010, 82560020]

約数ペア:

[(1, 82560020), (2, 41280010), (4, 20640005), (5, 16512004), (10, 8256002), (20, 4128001), (157, 525860), (314, 262930), (628, 131465), (785, 105172), (1570, 52586), (3140, 26293)]