80444480

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:268

約数の個数: 112

約数和(自身を含む): 205191360

約数和(自身を除く): 124746880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 101, 131, 152, 160, 190, 202, 262, 304, 320, 380, 404, 505, 524, 608, 655, 760, 808, 1010, 1048, 1216, 1310, 1520, 1616, 1919, 2020, 2096, 2489, 2620, 3040, 3232, 3838, 4040, 4192, 4978, 5240, 6080, 6464, 7676, 8080, 8384, 9595, 9956, 10480, 12445, 13231, 15352, 16160, 19190, 19912, 20960, 24890, 26462, 30704, 32320, 38380, 39824, 41920, 49780, 52924, 61408, 66155, 76760, 79648, 99560, 105848, 122816, 132310, 153520, 159296, 199120, 211696, 251389, 264620, 307040, 398240, 423392, 502778, 529240, 614080, 796480, 846784, 1005556, 1058480, 1256945, 2011112, 2116960, 2513890, 4022224, 4233920, 5027780, 8044448, 10055560, 16088896, 20111120, 40222240, 80444480]

約数ペア:

[(1, 80444480), (2, 40222240), (4, 20111120), (5, 16088896), (8, 10055560), (10, 8044448), (16, 5027780), (19, 4233920), (20, 4022224), (32, 2513890), (38, 2116960), (40, 2011112), (64, 1256945), (76, 1058480), (80, 1005556), (95, 846784), (101, 796480), (131, 614080), (152, 529240), (160, 502778), (190, 423392), (202, 398240), (262, 307040), (304, 264620), (320, 251389), (380, 211696), (404, 199120), (505, 159296), (524, 153520), (608, 132310), (655, 122816), (760, 105848), (808, 99560), (1010, 79648), (1048, 76760), (1216, 66155), (1310, 61408), (1520, 52924), (1616, 49780), (1919, 41920), (2020, 39824), (2096, 38380), (2489, 32320), (2620, 30704), (3040, 26462), (3232, 24890), (3838, 20960), (4040, 19912), (4192, 19190), (4978, 16160), (5240, 15352), (6080, 13231), (6464, 12445), (7676, 10480), (8080, 9956), (8384, 9595)]