1640482809

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{2381}}^1$

素因数の和:2550

約数の個数: 48

約数和(自身を含む): 2628584640

約数和(自身を除く): 988101831

約数列:

[1, 3, 7, 21, 43, 49, 109, 129, 147, 301, 327, 763, 903, 2107, 2289, 2381, 4687, 5341, 6321, 7143, 14061, 16023, 16667, 32809, 50001, 98427, 102383, 116669, 229663, 259529, 307149, 350007, 688989, 716681, 778587, 1816703, 2150043, 5016767, 5450109, 11159747, 12716921, 15050301, 33479241, 38150763, 78118229, 234354687, 546827603, 1640482809]

約数ペア:

[(1, 1640482809), (3, 546827603), (7, 234354687), (21, 78118229), (43, 38150763), (49, 33479241), (109, 15050301), (129, 12716921), (147, 11159747), (301, 5450109), (327, 5016767), (763, 2150043), (903, 1816703), (2107, 778587), (2289, 716681), (2381, 688989), (4687, 350007), (5341, 307149), (6321, 259529), (7143, 229663), (14061, 116669), (16023, 102383), (16667, 98427), (32809, 50001)]