249710720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:566

約数の個数: 128

約数和(自身を含む): 688867200

約数和(自身を除く): 439156480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 139, 140, 160, 224, 278, 280, 320, 401, 448, 556, 560, 640, 695, 802, 896, 973, 1112, 1120, 1390, 1604, 1946, 2005, 2224, 2240, 2780, 2807, 3208, 3892, 4010, 4448, 4480, 4865, 5560, 5614, 6416, 7784, 8020, 8896, 9730, 11120, 11228, 12832, 14035, 15568, 16040, 17792, 19460, 22240, 22456, 25664, 28070, 31136, 32080, 38920, 44480, 44912, 51328, 55739, 56140, 62272, 64160, 77840, 88960, 89824, 111478, 112280, 124544, 128320, 155680, 179648, 222956, 224560, 256640, 278695, 311360, 359296, 390173, 445912, 449120, 557390, 622720, 780346, 891824, 898240, 1114780, 1560692, 1783648, 1796480, 1950865, 2229560, 3121384, 3567296, 3901730, 4459120, 6242768, 7134592, 7803460, 8918240, 12485536, 15606920, 17836480, 24971072, 31213840, 35672960, 49942144, 62427680, 124855360, 249710720]

約数ペア:

[(1, 249710720), (2, 124855360), (4, 62427680), (5, 49942144), (7, 35672960), (8, 31213840), (10, 24971072), (14, 17836480), (16, 15606920), (20, 12485536), (28, 8918240), (32, 7803460), (35, 7134592), (40, 6242768), (56, 4459120), (64, 3901730), (70, 3567296), (80, 3121384), (112, 2229560), (128, 1950865), (139, 1796480), (140, 1783648), (160, 1560692), (224, 1114780), (278, 898240), (280, 891824), (320, 780346), (401, 622720), (448, 557390), (556, 449120), (560, 445912), (640, 390173), (695, 359296), (802, 311360), (896, 278695), (973, 256640), (1112, 224560), (1120, 222956), (1390, 179648), (1604, 155680), (1946, 128320), (2005, 124544), (2224, 112280), (2240, 111478), (2780, 89824), (2807, 88960), (3208, 77840), (3892, 64160), (4010, 62272), (4448, 56140), (4480, 55739), (4865, 51328), (5560, 44912), (5614, 44480), (6416, 38920), (7784, 32080), (8020, 31136), (8896, 28070), (9730, 25664), (11120, 22456), (11228, 22240), (12832, 19460), (14035, 17792), (15568, 16040)]