1281060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1$

素因数の和:673

約数の個数: 72

約数和(自身を含む): 4245696

約数和(自身を除く): 2964636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 647, 660, 990, 1294, 1941, 1980, 2588, 3235, 3882, 5823, 6470, 7117, 7764, 9705, 11646, 12940, 14234, 19410, 21351, 23292, 28468, 29115, 35585, 38820, 42702, 58230, 64053, 71170, 85404, 106755, 116460, 128106, 142340, 213510, 256212, 320265, 427020, 640530, 1281060]

約数ペア:

[(1, 1281060), (2, 640530), (3, 427020), (4, 320265), (5, 256212), (6, 213510), (9, 142340), (10, 128106), (11, 116460), (12, 106755), (15, 85404), (18, 71170), (20, 64053), (22, 58230), (30, 42702), (33, 38820), (36, 35585), (44, 29115), (45, 28468), (55, 23292), (60, 21351), (66, 19410), (90, 14234), (99, 12940), (110, 11646), (132, 9705), (165, 7764), (180, 7117), (198, 6470), (220, 5823), (330, 3882), (396, 3235), (495, 2588), (647, 1980), (660, 1941), (990, 1294)]