20201168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 80

約数和(自身を含む): 46403280

約数和(自身を除く): 26202112

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 29, 34, 52, 58, 68, 104, 116, 136, 197, 208, 221, 232, 272, 377, 394, 442, 464, 493, 754, 788, 884, 986, 1508, 1576, 1768, 1972, 2561, 3016, 3152, 3349, 3536, 3944, 5122, 5713, 6032, 6409, 6698, 7888, 10244, 11426, 12818, 13396, 20488, 22852, 25636, 26792, 40976, 43537, 45704, 51272, 53584, 74269, 87074, 91408, 97121, 102544, 148538, 174148, 194242, 297076, 348296, 388484, 594152, 696592, 776968, 1188304, 1262573, 1553936, 2525146, 5050292, 10100584, 20201168]

約数ペア:

[(1, 20201168), (2, 10100584), (4, 5050292), (8, 2525146), (13, 1553936), (16, 1262573), (17, 1188304), (26, 776968), (29, 696592), (34, 594152), (52, 388484), (58, 348296), (68, 297076), (104, 194242), (116, 174148), (136, 148538), (197, 102544), (208, 97121), (221, 91408), (232, 87074), (272, 74269), (377, 53584), (394, 51272), (442, 45704), (464, 43537), (493, 40976), (754, 26792), (788, 25636), (884, 22852), (986, 20488), (1508, 13396), (1576, 12818), (1768, 11426), (1972, 10244), (2561, 7888), (3016, 6698), (3152, 6409), (3349, 6032), (3536, 5713), (3944, 5122)]