51260515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7691}}^1$

素因数の和:7770

約数の個数: 16

約数和(自身を含む): 64982016

約数和(自身を除く): 13721501

約数列:

[1, 5, 31, 43, 155, 215, 1333, 6665, 7691, 38455, 238421, 330713, 1192105, 1653565, 10252103, 51260515]

約数ペア:

[(1, 51260515), (5, 10252103), (31, 1653565), (43, 1192105), (155, 330713), (215, 238421), (1333, 38455), (6665, 7691)]