1638945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1$

素因数の和:83

約数の個数: 72

約数和(自身を含む): 3651648

約数和(自身を除く): 2012703

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 43, 45, 55, 63, 77, 99, 105, 121, 129, 165, 215, 231, 301, 315, 363, 385, 387, 473, 495, 605, 645, 693, 847, 903, 1089, 1155, 1419, 1505, 1815, 1935, 2365, 2541, 2709, 3311, 3465, 4235, 4257, 4515, 5203, 5445, 7095, 7623, 9933, 12705, 13545, 15609, 16555, 21285, 26015, 29799, 36421, 38115, 46827, 49665, 78045, 109263, 148995, 182105, 234135, 327789, 546315, 1638945]

約数ペア:

[(1, 1638945), (3, 546315), (5, 327789), (7, 234135), (9, 182105), (11, 148995), (15, 109263), (21, 78045), (33, 49665), (35, 46827), (43, 38115), (45, 36421), (55, 29799), (63, 26015), (77, 21285), (99, 16555), (105, 15609), (121, 13545), (129, 12705), (165, 9933), (215, 7623), (231, 7095), (301, 5445), (315, 5203), (363, 4515), (385, 4257), (387, 4235), (473, 3465), (495, 3311), (605, 2709), (645, 2541), (693, 2365), (847, 1935), (903, 1815), (1089, 1505), (1155, 1419)]