1311382020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1681259}}^1$

素因数の和:1681284

約数の個数: 48

約数和(自身を含む): 3954323520

約数和(自身を除く): 2642941500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1681259, 3362518, 5043777, 6725036, 8406295, 10087554, 16812590, 20175108, 21856367, 25218885, 33625180, 43712734, 50437770, 65569101, 87425468, 100875540, 109281835, 131138202, 218563670, 262276404, 327845505, 437127340, 655691010, 1311382020]

約数ペア:

[(1, 1311382020), (2, 655691010), (3, 437127340), (4, 327845505), (5, 262276404), (6, 218563670), (10, 131138202), (12, 109281835), (13, 100875540), (15, 87425468), (20, 65569101), (26, 50437770), (30, 43712734), (39, 33625180), (52, 25218885), (60, 21856367), (65, 20175108), (78, 16812590), (130, 10087554), (156, 8406295), (195, 6725036), (260, 5043777), (390, 3362518), (780, 1681259)]