20687514608

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{4621}}^1$

素因数の和:4906

約数の個数: 80

約数和(自身を含む): 43122150720

約数和(自身を除く): 22434636112

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 109, 136, 151, 218, 272, 302, 436, 604, 872, 1208, 1744, 1853, 2416, 2567, 3706, 4621, 5134, 7412, 9242, 10268, 14824, 16459, 18484, 20536, 29648, 32918, 36968, 41072, 65836, 73936, 78557, 131672, 157114, 263344, 279803, 314228, 503689, 559606, 628456, 697771, 1007378, 1119212, 1256912, 1395542, 2014756, 2238424, 2791084, 4029512, 4476848, 5582168, 8059024, 8562713, 11164336, 11862107, 17125426, 23724214, 34250852, 47448428, 68501704, 76057039, 94896856, 137003408, 152114078, 189793712, 304228156, 608456312, 1216912624, 1292969663, 2585939326, 5171878652, 10343757304, 20687514608]

約数ペア:

[(1, 20687514608), (2, 10343757304), (4, 5171878652), (8, 2585939326), (16, 1292969663), (17, 1216912624), (34, 608456312), (68, 304228156), (109, 189793712), (136, 152114078), (151, 137003408), (218, 94896856), (272, 76057039), (302, 68501704), (436, 47448428), (604, 34250852), (872, 23724214), (1208, 17125426), (1744, 11862107), (1853, 11164336), (2416, 8562713), (2567, 8059024), (3706, 5582168), (4621, 4476848), (5134, 4029512), (7412, 2791084), (9242, 2238424), (10268, 2014756), (14824, 1395542), (16459, 1256912), (18484, 1119212), (20536, 1007378), (29648, 697771), (32918, 628456), (36968, 559606), (41072, 503689), (65836, 314228), (73936, 279803), (78557, 263344), (131672, 157114)]