991770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2543}}^1$

素因数の和:2566

約数の個数: 32

約数和(自身を含む): 2564352

約数和(自身を除く): 1572582

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 2543, 5086, 7629, 12715, 15258, 25430, 33059, 38145, 66118, 76290, 99177, 165295, 198354, 330590, 495885, 991770]

約数ペア:

[(1, 991770), (2, 495885), (3, 330590), (5, 198354), (6, 165295), (10, 99177), (13, 76290), (15, 66118), (26, 38145), (30, 33059), (39, 25430), (65, 15258), (78, 12715), (130, 7629), (195, 5086), (390, 2543)]