20606992

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 49282560

約数和(自身を除く): 28675568

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 79, 112, 119, 136, 137, 158, 238, 272, 274, 316, 476, 548, 553, 632, 952, 959, 1096, 1106, 1264, 1343, 1904, 1918, 2192, 2212, 2329, 2686, 3836, 4424, 4658, 5372, 7672, 8848, 9316, 9401, 10744, 10823, 15344, 16303, 18632, 18802, 21488, 21646, 32606, 37264, 37604, 43292, 65212, 75208, 75761, 86584, 130424, 150416, 151522, 173168, 183991, 260848, 303044, 367982, 606088, 735964, 1212176, 1287937, 1471928, 2575874, 2943856, 5151748, 10303496, 20606992]

約数ペア:

[(1, 20606992), (2, 10303496), (4, 5151748), (7, 2943856), (8, 2575874), (14, 1471928), (16, 1287937), (17, 1212176), (28, 735964), (34, 606088), (56, 367982), (68, 303044), (79, 260848), (112, 183991), (119, 173168), (136, 151522), (137, 150416), (158, 130424), (238, 86584), (272, 75761), (274, 75208), (316, 65212), (476, 43292), (548, 37604), (553, 37264), (632, 32606), (952, 21646), (959, 21488), (1096, 18802), (1106, 18632), (1264, 16303), (1343, 15344), (1904, 10823), (1918, 10744), (2192, 9401), (2212, 9316), (2329, 8848), (2686, 7672), (3836, 5372), (4424, 4658)]