83668540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 180956160

約数和(自身を除く): 97287620

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 271, 359, 430, 542, 718, 860, 1084, 1355, 1436, 1795, 2710, 3590, 5420, 7180, 11653, 15437, 23306, 30874, 46612, 58265, 61748, 77185, 97289, 116530, 154370, 194578, 233060, 308740, 389156, 486445, 972890, 1945780, 4183427, 8366854, 16733708, 20917135, 41834270, 83668540]

約数ペア:

[(1, 83668540), (2, 41834270), (4, 20917135), (5, 16733708), (10, 8366854), (20, 4183427), (43, 1945780), (86, 972890), (172, 486445), (215, 389156), (271, 308740), (359, 233060), (430, 194578), (542, 154370), (718, 116530), (860, 97289), (1084, 77185), (1355, 61748), (1436, 58265), (1795, 46612), (2710, 30874), (3590, 23306), (5420, 15437), (7180, 11653)]