12731895

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 25861680

約数和(自身を除く): 13129785

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 51, 55, 85, 89, 99, 153, 165, 187, 255, 267, 289, 445, 495, 561, 765, 801, 867, 935, 979, 1335, 1445, 1513, 1683, 2601, 2805, 2937, 3179, 4005, 4335, 4539, 4895, 7565, 8415, 8811, 9537, 13005, 13617, 14685, 15895, 16643, 22695, 25721, 28611, 44055, 47685, 49929, 68085, 77163, 83215, 128605, 143055, 149787, 231489, 249645, 282931, 385815, 748935, 848793, 1157445, 1414655, 2546379, 4243965, 12731895]

約数ペア:

[(1, 12731895), (3, 4243965), (5, 2546379), (9, 1414655), (11, 1157445), (15, 848793), (17, 748935), (33, 385815), (45, 282931), (51, 249645), (55, 231489), (85, 149787), (89, 143055), (99, 128605), (153, 83215), (165, 77163), (187, 68085), (255, 49929), (267, 47685), (289, 44055), (445, 28611), (495, 25721), (561, 22695), (765, 16643), (801, 15895), (867, 14685), (935, 13617), (979, 13005), (1335, 9537), (1445, 8811), (1513, 8415), (1683, 7565), (2601, 4895), (2805, 4539), (2937, 4335), (3179, 4005)]