820478080

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:582

約数の個数: 128

約数和(自身を含む): 2066601600

約数和(自身を除く): 1246123520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 139, 160, 184, 230, 278, 320, 368, 401, 460, 556, 640, 695, 736, 802, 920, 1112, 1390, 1472, 1604, 1840, 2005, 2224, 2780, 2944, 3197, 3208, 3680, 4010, 4448, 5560, 6394, 6416, 7360, 8020, 8896, 9223, 11120, 12788, 12832, 14720, 15985, 16040, 17792, 18446, 22240, 25576, 25664, 31970, 32080, 36892, 44480, 46115, 51152, 51328, 55739, 63940, 64160, 73784, 88960, 92230, 102304, 111478, 127880, 128320, 147568, 184460, 204608, 222956, 255760, 256640, 278695, 295136, 368920, 409216, 445912, 511520, 557390, 590272, 737840, 891824, 1023040, 1114780, 1180544, 1281997, 1475680, 1783648, 2046080, 2229560, 2563994, 2951360, 3567296, 4459120, 5127988, 5902720, 6409985, 7134592, 8918240, 10255976, 12819970, 17836480, 20511952, 25639940, 35672960, 41023904, 51279880, 82047808, 102559760, 164095616, 205119520, 410239040, 820478080]

約数ペア:

[(1, 820478080), (2, 410239040), (4, 205119520), (5, 164095616), (8, 102559760), (10, 82047808), (16, 51279880), (20, 41023904), (23, 35672960), (32, 25639940), (40, 20511952), (46, 17836480), (64, 12819970), (80, 10255976), (92, 8918240), (115, 7134592), (128, 6409985), (139, 5902720), (160, 5127988), (184, 4459120), (230, 3567296), (278, 2951360), (320, 2563994), (368, 2229560), (401, 2046080), (460, 1783648), (556, 1475680), (640, 1281997), (695, 1180544), (736, 1114780), (802, 1023040), (920, 891824), (1112, 737840), (1390, 590272), (1472, 557390), (1604, 511520), (1840, 445912), (2005, 409216), (2224, 368920), (2780, 295136), (2944, 278695), (3197, 256640), (3208, 255760), (3680, 222956), (4010, 204608), (4448, 184460), (5560, 147568), (6394, 128320), (6416, 127880), (7360, 111478), (8020, 102304), (8896, 92230), (9223, 88960), (11120, 73784), (12788, 64160), (12832, 63940), (14720, 55739), (15985, 51328), (16040, 51152), (17792, 46115), (18446, 44480), (22240, 36892), (25576, 32080), (25664, 31970)]