81284238

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:766

約数の個数: 72

約数和(自身を含む): 206525592

約数和(自身を除く): 125241354

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 157, 294, 314, 441, 471, 587, 882, 942, 1099, 1174, 1413, 1761, 2198, 2826, 3297, 3522, 4109, 5283, 6594, 7693, 8218, 9891, 10566, 12327, 15386, 19782, 23079, 24654, 28763, 36981, 46158, 57526, 69237, 73962, 86289, 92159, 138474, 172578, 184318, 258867, 276477, 517734, 552954, 645113, 829431, 1290226, 1658862, 1935339, 3870678, 4515791, 5806017, 9031582, 11612034, 13547373, 27094746, 40642119, 81284238]

約数ペア:

[(1, 81284238), (2, 40642119), (3, 27094746), (6, 13547373), (7, 11612034), (9, 9031582), (14, 5806017), (18, 4515791), (21, 3870678), (42, 1935339), (49, 1658862), (63, 1290226), (98, 829431), (126, 645113), (147, 552954), (157, 517734), (294, 276477), (314, 258867), (441, 184318), (471, 172578), (587, 138474), (882, 92159), (942, 86289), (1099, 73962), (1174, 69237), (1413, 57526), (1761, 46158), (2198, 36981), (2826, 28763), (3297, 24654), (3522, 23079), (4109, 19782), (5283, 15386), (6594, 12327), (7693, 10566), (8218, 9891)]