20789027986

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{1789}}^1$

素因数の和:2155

約数の個数: 64

約数和(自身を含む): 34890393600

約数和(自身を除く): 14101365614

約数列:

[1, 2, 23, 29, 31, 46, 58, 62, 281, 562, 667, 713, 899, 1334, 1426, 1789, 1798, 3578, 6463, 8149, 8711, 12926, 16298, 17422, 20677, 41147, 41354, 51881, 55459, 82294, 103762, 110918, 187427, 200353, 252619, 374854, 400706, 502709, 505238, 1005418, 1193263, 1275557, 1608311, 2386526, 2551114, 3216622, 5810237, 11562307, 11620474, 14578561, 15583979, 23124614, 29157122, 31167958, 36991153, 73982306, 335306903, 358431517, 451935391, 670613806, 716863034, 903870782, 10394513993, 20789027986]

約数ペア:

[(1, 20789027986), (2, 10394513993), (23, 903870782), (29, 716863034), (31, 670613806), (46, 451935391), (58, 358431517), (62, 335306903), (281, 73982306), (562, 36991153), (667, 31167958), (713, 29157122), (899, 23124614), (1334, 15583979), (1426, 14578561), (1789, 11620474), (1798, 11562307), (3578, 5810237), (6463, 3216622), (8149, 2551114), (8711, 2386526), (12926, 1608311), (16298, 1275557), (17422, 1193263), (20677, 1005418), (41147, 505238), (41354, 502709), (51881, 400706), (55459, 374854), (82294, 252619), (103762, 200353), (110918, 187427)]