1340464

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:628

約数の個数: 20

約数和(自身を含む): 2616400

約数和(自身を除く): 1275936

約数列:

[1, 2, 4, 8, 16, 199, 398, 421, 796, 842, 1592, 1684, 3184, 3368, 6736, 83779, 167558, 335116, 670232, 1340464]

約数ペア:

[(1, 1340464), (2, 670232), (4, 335116), (8, 167558), (16, 83779), (199, 6736), (398, 3368), (421, 3184), (796, 1684), (842, 1592)]