77885920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:572

約数の個数: 96

約数和(自身を含む): 211958208

約数和(自身を除く): 134072288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 197, 224, 280, 353, 394, 560, 706, 788, 985, 1120, 1379, 1412, 1576, 1765, 1970, 2471, 2758, 2824, 3152, 3530, 3940, 4942, 5516, 5648, 6304, 6895, 7060, 7880, 9884, 11032, 11296, 12355, 13790, 14120, 15760, 19768, 22064, 24710, 27580, 28240, 31520, 39536, 44128, 49420, 55160, 56480, 69541, 79072, 98840, 110320, 139082, 197680, 220640, 278164, 347705, 395360, 486787, 556328, 695410, 973574, 1112656, 1390820, 1947148, 2225312, 2433935, 2781640, 3894296, 4867870, 5563280, 7788592, 9735740, 11126560, 15577184, 19471480, 38942960, 77885920]

約数ペア:

[(1, 77885920), (2, 38942960), (4, 19471480), (5, 15577184), (7, 11126560), (8, 9735740), (10, 7788592), (14, 5563280), (16, 4867870), (20, 3894296), (28, 2781640), (32, 2433935), (35, 2225312), (40, 1947148), (56, 1390820), (70, 1112656), (80, 973574), (112, 695410), (140, 556328), (160, 486787), (197, 395360), (224, 347705), (280, 278164), (353, 220640), (394, 197680), (560, 139082), (706, 110320), (788, 98840), (985, 79072), (1120, 69541), (1379, 56480), (1412, 55160), (1576, 49420), (1765, 44128), (1970, 39536), (2471, 31520), (2758, 28240), (2824, 27580), (3152, 24710), (3530, 22064), (3940, 19768), (4942, 15760), (5516, 14120), (5648, 13790), (6304, 12355), (6895, 11296), (7060, 11032), (7880, 9884)]