51621640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{701}}^1$

素因数の和:982

約数の個数: 64

約数和(自身を含む): 133436160

約数和(自身を除く): 81814520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 526, 701, 1052, 1315, 1402, 1841, 2104, 2630, 2804, 3505, 3682, 4907, 5260, 5608, 7010, 7364, 9205, 9814, 10520, 14020, 14728, 18410, 19628, 24535, 28040, 36820, 39256, 49070, 73640, 98140, 184363, 196280, 368726, 737452, 921815, 1290541, 1474904, 1843630, 2581082, 3687260, 5162164, 6452705, 7374520, 10324328, 12905410, 25810820, 51621640]

約数ペア:

[(1, 51621640), (2, 25810820), (4, 12905410), (5, 10324328), (7, 7374520), (8, 6452705), (10, 5162164), (14, 3687260), (20, 2581082), (28, 1843630), (35, 1474904), (40, 1290541), (56, 921815), (70, 737452), (140, 368726), (263, 196280), (280, 184363), (526, 98140), (701, 73640), (1052, 49070), (1315, 39256), (1402, 36820), (1841, 28040), (2104, 24535), (2630, 19628), (2804, 18410), (3505, 14728), (3682, 14020), (4907, 10520), (5260, 9814), (5608, 9205), (7010, 7364)]