28298556

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:296

約数の個数: 144

約数和(自身を含む): 88058880

約数和(自身を除く): 59760324

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 23, 26, 33, 36, 39, 44, 46, 52, 66, 69, 78, 92, 99, 117, 132, 138, 143, 156, 198, 207, 234, 239, 253, 276, 286, 299, 396, 414, 429, 468, 478, 506, 572, 598, 717, 759, 828, 858, 897, 956, 1012, 1196, 1287, 1434, 1518, 1716, 1794, 2151, 2277, 2574, 2629, 2691, 2868, 3036, 3107, 3289, 3588, 4302, 4554, 5148, 5258, 5382, 5497, 6214, 6578, 7887, 8604, 9108, 9321, 9867, 10516, 10764, 10994, 12428, 13156, 15774, 16491, 18642, 19734, 21988, 23661, 27963, 29601, 31548, 32982, 34177, 37284, 39468, 47322, 49473, 55926, 59202, 60467, 65964, 68354, 71461, 94644, 98946, 102531, 111852, 118404, 120934, 136708, 142922, 181401, 197892, 205062, 214383, 241868, 285844, 307593, 362802, 410124, 428766, 544203, 615186, 643149, 725604, 786071, 857532, 1088406, 1230372, 1286298, 1572142, 2176812, 2358213, 2572596, 3144284, 4716426, 7074639, 9432852, 14149278, 28298556]

約数ペア:

[(1, 28298556), (2, 14149278), (3, 9432852), (4, 7074639), (6, 4716426), (9, 3144284), (11, 2572596), (12, 2358213), (13, 2176812), (18, 1572142), (22, 1286298), (23, 1230372), (26, 1088406), (33, 857532), (36, 786071), (39, 725604), (44, 643149), (46, 615186), (52, 544203), (66, 428766), (69, 410124), (78, 362802), (92, 307593), (99, 285844), (117, 241868), (132, 214383), (138, 205062), (143, 197892), (156, 181401), (198, 142922), (207, 136708), (234, 120934), (239, 118404), (253, 111852), (276, 102531), (286, 98946), (299, 94644), (396, 71461), (414, 68354), (429, 65964), (468, 60467), (478, 59202), (506, 55926), (572, 49473), (598, 47322), (717, 39468), (759, 37284), (828, 34177), (858, 32982), (897, 31548), (956, 29601), (1012, 27963), (1196, 23661), (1287, 21988), (1434, 19734), (1518, 18642), (1716, 16491), (1794, 15774), (2151, 13156), (2277, 12428), (2574, 10994), (2629, 10764), (2691, 10516), (2868, 9867), (3036, 9321), (3107, 9108), (3289, 8604), (3588, 7887), (4302, 6578), (4554, 6214), (5148, 5497), (5258, 5382)]