81850990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{629623}}^1$

素因数の和:629643

約数の個数: 16

約数和(自身を含む): 158665248

約数和(自身を除く): 76814258

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 629623, 1259246, 3148115, 6296230, 8185099, 16370198, 40925495, 81850990]

約数ペア:

[(1, 81850990), (2, 40925495), (5, 16370198), (10, 8185099), (13, 6296230), (26, 3148115), (65, 1259246), (130, 629623)]