205090990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1577623}}^1$

素因数の和:1577643

約数の個数: 16

約数和(自身を含む): 397561248

約数和(自身を除く): 192470258

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1577623, 3155246, 7888115, 15776230, 20509099, 41018198, 102545495, 205090990]

約数ペア:

[(1, 205090990), (2, 102545495), (5, 41018198), (10, 20509099), (13, 15776230), (26, 7888115), (65, 3155246), (130, 1577623)]