18225956608

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71987}}^1$

素因数の和:72069

約数の個数: 72

約数和(自身を含む): 38845876608

約数和(自身を除く): 20619920000

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 64, 86, 92, 128, 172, 184, 256, 344, 368, 688, 736, 989, 1376, 1472, 1978, 2752, 2944, 3956, 5504, 5888, 7912, 11008, 15824, 31648, 63296, 71987, 126592, 143974, 253184, 287948, 575896, 1151792, 1655701, 2303584, 3095441, 3311402, 4607168, 6190882, 6622804, 9214336, 12381764, 13245608, 18428672, 24763528, 26491216, 49527056, 52982432, 71195143, 99054112, 105964864, 142390286, 198108224, 211929728, 284780572, 396216448, 423859456, 569561144, 792432896, 1139122288, 2278244576, 4556489152, 9112978304, 18225956608]

約数ペア:

[(1, 18225956608), (2, 9112978304), (4, 4556489152), (8, 2278244576), (16, 1139122288), (23, 792432896), (32, 569561144), (43, 423859456), (46, 396216448), (64, 284780572), (86, 211929728), (92, 198108224), (128, 142390286), (172, 105964864), (184, 99054112), (256, 71195143), (344, 52982432), (368, 49527056), (688, 26491216), (736, 24763528), (989, 18428672), (1376, 13245608), (1472, 12381764), (1978, 9214336), (2752, 6622804), (2944, 6190882), (3956, 4607168), (5504, 3311402), (5888, 3095441), (7912, 2303584), (11008, 1655701), (15824, 1151792), (31648, 575896), (63296, 287948), (71987, 253184), (126592, 143974)]