81717776

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:456

約数の個数: 80

約数和(自身を含む): 193487616

約数和(自身を除く): 111769840

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 167, 238, 257, 272, 334, 476, 514, 668, 952, 1028, 1169, 1336, 1799, 1904, 2056, 2338, 2672, 2839, 3598, 4112, 4369, 4676, 5678, 7196, 8738, 9352, 11356, 14392, 17476, 18704, 19873, 22712, 28784, 30583, 34952, 39746, 42919, 45424, 61166, 69904, 79492, 85838, 122332, 158984, 171676, 244664, 300433, 317968, 343352, 489328, 600866, 686704, 729623, 1201732, 1459246, 2403464, 2918492, 4806928, 5107361, 5836984, 10214722, 11673968, 20429444, 40858888, 81717776]

約数ペア:

[(1, 81717776), (2, 40858888), (4, 20429444), (7, 11673968), (8, 10214722), (14, 5836984), (16, 5107361), (17, 4806928), (28, 2918492), (34, 2403464), (56, 1459246), (68, 1201732), (112, 729623), (119, 686704), (136, 600866), (167, 489328), (238, 343352), (257, 317968), (272, 300433), (334, 244664), (476, 171676), (514, 158984), (668, 122332), (952, 85838), (1028, 79492), (1169, 69904), (1336, 61166), (1799, 45424), (1904, 42919), (2056, 39746), (2338, 34952), (2672, 30583), (2839, 28784), (3598, 22712), (4112, 19873), (4369, 18704), (4676, 17476), (5678, 14392), (7196, 11356), (8738, 9352)]