28791224

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{607}}^1$

素因数の和:649

約数の個数: 72

約数和(自身を含む): 69138720

約数和(自身を除く): 40347496

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 121, 154, 196, 242, 308, 392, 484, 539, 607, 616, 847, 968, 1078, 1214, 1694, 2156, 2428, 3388, 4249, 4312, 4856, 5929, 6677, 6776, 8498, 11858, 13354, 16996, 23716, 26708, 29743, 33992, 46739, 47432, 53416, 59486, 73447, 93478, 118972, 146894, 186956, 237944, 293788, 327173, 373912, 514129, 587576, 654346, 1028258, 1308692, 2056516, 2617384, 3598903, 4113032, 7197806, 14395612, 28791224]

約数ペア:

[(1, 28791224), (2, 14395612), (4, 7197806), (7, 4113032), (8, 3598903), (11, 2617384), (14, 2056516), (22, 1308692), (28, 1028258), (44, 654346), (49, 587576), (56, 514129), (77, 373912), (88, 327173), (98, 293788), (121, 237944), (154, 186956), (196, 146894), (242, 118972), (308, 93478), (392, 73447), (484, 59486), (539, 53416), (607, 47432), (616, 46739), (847, 33992), (968, 29743), (1078, 26708), (1214, 23716), (1694, 16996), (2156, 13354), (2428, 11858), (3388, 8498), (4249, 6776), (4312, 6677), (4856, 5929)]