280852208

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2879}}^1$

素因数の和:2974

約数の個数: 80

約数和(自身を含む): 679956480

約数和(自身を除く): 399104272

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 67, 91, 104, 112, 134, 182, 208, 268, 364, 469, 536, 728, 871, 938, 1072, 1456, 1742, 1876, 2879, 3484, 3752, 5758, 6097, 6968, 7504, 11516, 12194, 13936, 20153, 23032, 24388, 37427, 40306, 46064, 48776, 74854, 80612, 97552, 149708, 161224, 192893, 261989, 299416, 322448, 385786, 523978, 598832, 771572, 1047956, 1350251, 1543144, 2095912, 2507609, 2700502, 3086288, 4191824, 5015218, 5401004, 10030436, 10802008, 17553263, 20060872, 21604016, 35106526, 40121744, 70213052, 140426104, 280852208]

約数ペア:

[(1, 280852208), (2, 140426104), (4, 70213052), (7, 40121744), (8, 35106526), (13, 21604016), (14, 20060872), (16, 17553263), (26, 10802008), (28, 10030436), (52, 5401004), (56, 5015218), (67, 4191824), (91, 3086288), (104, 2700502), (112, 2507609), (134, 2095912), (182, 1543144), (208, 1350251), (268, 1047956), (364, 771572), (469, 598832), (536, 523978), (728, 385786), (871, 322448), (938, 299416), (1072, 261989), (1456, 192893), (1742, 161224), (1876, 149708), (2879, 97552), (3484, 80612), (3752, 74854), (5758, 48776), (6097, 46064), (6968, 40306), (7504, 37427), (11516, 24388), (12194, 23032), (13936, 20153)]