72977240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{991}}^1$

素因数の和:1272

約数の個数: 64

約数和(自身を含む): 188559360

約数和(自身を除く): 115582120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 526, 991, 1052, 1315, 1841, 1982, 2104, 2630, 3682, 3964, 4955, 5260, 6937, 7364, 7928, 9205, 9910, 10520, 13874, 14728, 18410, 19820, 27748, 34685, 36820, 39640, 55496, 69370, 73640, 138740, 260633, 277480, 521266, 1042532, 1303165, 1824431, 2085064, 2606330, 3648862, 5212660, 7297724, 9122155, 10425320, 14595448, 18244310, 36488620, 72977240]

約数ペア:

[(1, 72977240), (2, 36488620), (4, 18244310), (5, 14595448), (7, 10425320), (8, 9122155), (10, 7297724), (14, 5212660), (20, 3648862), (28, 2606330), (35, 2085064), (40, 1824431), (56, 1303165), (70, 1042532), (140, 521266), (263, 277480), (280, 260633), (526, 138740), (991, 73640), (1052, 69370), (1315, 55496), (1841, 39640), (1982, 36820), (2104, 34685), (2630, 27748), (3682, 19820), (3964, 18410), (4955, 14728), (5260, 13874), (6937, 10520), (7364, 9910), (7928, 9205)]