19642090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1087}}^1$

素因数の和:1246

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 18742550

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1087, 1390, 1807, 2174, 3614, 5435, 9035, 10870, 14131, 18070, 28262, 70655, 141310, 151093, 302186, 755465, 1510930, 1964209, 3928418, 9821045, 19642090]

約数ペア:

[(1, 19642090), (2, 9821045), (5, 3928418), (10, 1964209), (13, 1510930), (26, 755465), (65, 302186), (130, 151093), (139, 141310), (278, 70655), (695, 28262), (1087, 18070), (1390, 14131), (1807, 10870), (2174, 9035), (3614, 5435)]