1605780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 5320224

約数和(自身を除く): 3714444

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, 660, 811, 990, 1622, 1980, 2433, 3244, 4055, 4866, 7299, 8110, 8921, 9732, 12165, 14598, 16220, 17842, 24330, 26763, 29196, 35684, 36495, 44605, 48660, 53526, 72990, 80289, 89210, 107052, 133815, 145980, 160578, 178420, 267630, 321156, 401445, 535260, 802890, 1605780]

約数ペア:

[(1, 1605780), (2, 802890), (3, 535260), (4, 401445), (5, 321156), (6, 267630), (9, 178420), (10, 160578), (11, 145980), (12, 133815), (15, 107052), (18, 89210), (20, 80289), (22, 72990), (30, 53526), (33, 48660), (36, 44605), (44, 36495), (45, 35684), (55, 29196), (60, 26763), (66, 24330), (90, 17842), (99, 16220), (110, 14598), (132, 12165), (165, 9732), (180, 8921), (198, 8110), (220, 7299), (330, 4866), (396, 4055), (495, 3244), (660, 2433), (811, 1980), (990, 1622)]