20663568

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:421

約数の個数: 120

約数和(自身を含む): 64067328

約数和(自身を除く): 43403760

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 23, 24, 34, 36, 46, 48, 51, 68, 69, 72, 92, 102, 136, 138, 144, 153, 184, 204, 207, 272, 276, 306, 367, 368, 391, 408, 414, 552, 612, 734, 782, 816, 828, 1101, 1104, 1173, 1224, 1468, 1564, 1656, 2202, 2346, 2448, 2936, 3128, 3303, 3312, 3519, 4404, 4692, 5872, 6239, 6256, 6606, 7038, 8441, 8808, 9384, 12478, 13212, 14076, 16882, 17616, 18717, 18768, 24956, 25323, 26424, 28152, 33764, 37434, 49912, 50646, 52848, 56151, 56304, 67528, 74868, 75969, 99824, 101292, 112302, 135056, 143497, 149736, 151938, 202584, 224604, 286994, 299472, 303876, 405168, 430491, 449208, 573988, 607752, 860982, 898416, 1147976, 1215504, 1291473, 1721964, 2295952, 2582946, 3443928, 5165892, 6887856, 10331784, 20663568]

約数ペア:

[(1, 20663568), (2, 10331784), (3, 6887856), (4, 5165892), (6, 3443928), (8, 2582946), (9, 2295952), (12, 1721964), (16, 1291473), (17, 1215504), (18, 1147976), (23, 898416), (24, 860982), (34, 607752), (36, 573988), (46, 449208), (48, 430491), (51, 405168), (68, 303876), (69, 299472), (72, 286994), (92, 224604), (102, 202584), (136, 151938), (138, 149736), (144, 143497), (153, 135056), (184, 112302), (204, 101292), (207, 99824), (272, 75969), (276, 74868), (306, 67528), (367, 56304), (368, 56151), (391, 52848), (408, 50646), (414, 49912), (552, 37434), (612, 33764), (734, 28152), (782, 26424), (816, 25323), (828, 24956), (1101, 18768), (1104, 18717), (1173, 17616), (1224, 16882), (1468, 14076), (1564, 13212), (1656, 12478), (2202, 9384), (2346, 8808), (2448, 8441), (2936, 7038), (3128, 6606), (3303, 6256), (3312, 6239), (3519, 5872), (4404, 4692)]