1998799088

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{45979}}^1$

素因数の和:46030

約数の個数: 80

約数和(自身を含む): 4789276800

約数和(自身を除く): 2790477712

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 176, 208, 209, 247, 286, 304, 418, 494, 572, 836, 988, 1144, 1672, 1976, 2288, 2717, 3344, 3952, 5434, 10868, 21736, 43472, 45979, 91958, 183916, 367832, 505769, 597727, 735664, 873601, 1011538, 1195454, 1747202, 2023076, 2390908, 3494404, 4046152, 4781816, 6574997, 6988808, 8092304, 9563632, 9609611, 11356813, 13149994, 13977616, 19219222, 22713626, 26299988, 38438444, 45427252, 52599976, 76876888, 90854504, 105199952, 124924943, 153753776, 181709008, 249849886, 499699772, 999399544, 1998799088]

約数ペア:

[(1, 1998799088), (2, 999399544), (4, 499699772), (8, 249849886), (11, 181709008), (13, 153753776), (16, 124924943), (19, 105199952), (22, 90854504), (26, 76876888), (38, 52599976), (44, 45427252), (52, 38438444), (76, 26299988), (88, 22713626), (104, 19219222), (143, 13977616), (152, 13149994), (176, 11356813), (208, 9609611), (209, 9563632), (247, 8092304), (286, 6988808), (304, 6574997), (418, 4781816), (494, 4046152), (572, 3494404), (836, 2390908), (988, 2023076), (1144, 1747202), (1672, 1195454), (1976, 1011538), (2288, 873601), (2717, 735664), (3344, 597727), (3952, 505769), (5434, 367832), (10868, 183916), (21736, 91958), (43472, 45979)]