81255230

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1193}}^1$

素因数の和:1353

約数の個数: 48

約数和(自身を含む): 171506160

約数和(自身を除く): 90250930

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 139, 245, 278, 490, 695, 973, 1193, 1390, 1946, 2386, 4865, 5965, 6811, 8351, 9730, 11930, 13622, 16702, 34055, 41755, 58457, 68110, 83510, 116914, 165827, 292285, 331654, 584570, 829135, 1160789, 1658270, 2321578, 5803945, 8125523, 11607890, 16251046, 40627615, 81255230]

約数ペア:

[(1, 81255230), (2, 40627615), (5, 16251046), (7, 11607890), (10, 8125523), (14, 5803945), (35, 2321578), (49, 1658270), (70, 1160789), (98, 829135), (139, 584570), (245, 331654), (278, 292285), (490, 165827), (695, 116914), (973, 83510), (1193, 68110), (1390, 58457), (1946, 41755), (2386, 34055), (4865, 16702), (5965, 13622), (6811, 11930), (8351, 9730)]