28780782142

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{739}}^1\times {\mathrm{1531}}^1$

素因数の和:2381

約数の個数: 64

約数和(自身を含む): 52239974400

約数和(自身を除く): 23459192258

約数列:

[1, 2, 7, 14, 23, 46, 79, 158, 161, 322, 553, 739, 1106, 1478, 1531, 1817, 3062, 3634, 5173, 10346, 10717, 12719, 16997, 21434, 25438, 33994, 35213, 58381, 70426, 116762, 118979, 120949, 237958, 241898, 246491, 408667, 492982, 817334, 846643, 1131409, 1342763, 1693286, 2262818, 2685526, 2781827, 5563654, 7919863, 9399341, 15839726, 18798682, 19472789, 26022407, 38945578, 52044814, 89381311, 178762622, 182156849, 364313698, 625669177, 1251338354, 2055770153, 4111540306, 14390391071, 28780782142]

約数ペア:

[(1, 28780782142), (2, 14390391071), (7, 4111540306), (14, 2055770153), (23, 1251338354), (46, 625669177), (79, 364313698), (158, 182156849), (161, 178762622), (322, 89381311), (553, 52044814), (739, 38945578), (1106, 26022407), (1478, 19472789), (1531, 18798682), (1817, 15839726), (3062, 9399341), (3634, 7919863), (5173, 5563654), (10346, 2781827), (10717, 2685526), (12719, 2262818), (16997, 1693286), (21434, 1342763), (25438, 1131409), (33994, 846643), (35213, 817334), (58381, 492982), (70426, 408667), (116762, 246491), (118979, 241898), (120949, 237958)]