81389776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 178738560

約数和(自身を除く): 97348784

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 103, 104, 116, 131, 206, 208, 232, 262, 377, 412, 464, 524, 754, 824, 1048, 1339, 1508, 1648, 1703, 2096, 2678, 2987, 3016, 3406, 3799, 5356, 5974, 6032, 6812, 7598, 10712, 11948, 13493, 13624, 15196, 21424, 23896, 26986, 27248, 30392, 38831, 47792, 49387, 53972, 60784, 77662, 98774, 107944, 155324, 175409, 197548, 215888, 310648, 350818, 391297, 395096, 621296, 701636, 782594, 790192, 1403272, 1565188, 2806544, 3130376, 5086861, 6260752, 10173722, 20347444, 40694888, 81389776]

約数ペア:

[(1, 81389776), (2, 40694888), (4, 20347444), (8, 10173722), (13, 6260752), (16, 5086861), (26, 3130376), (29, 2806544), (52, 1565188), (58, 1403272), (103, 790192), (104, 782594), (116, 701636), (131, 621296), (206, 395096), (208, 391297), (232, 350818), (262, 310648), (377, 215888), (412, 197548), (464, 175409), (524, 155324), (754, 107944), (824, 98774), (1048, 77662), (1339, 60784), (1508, 53972), (1648, 49387), (1703, 47792), (2096, 38831), (2678, 30392), (2987, 27248), (3016, 26986), (3406, 23896), (3799, 21424), (5356, 15196), (5974, 13624), (6032, 13493), (6812, 11948), (7598, 10712)]