81630726

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 181370880

約数和(自身を除く): 99740154

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 114, 138, 163, 191, 326, 382, 437, 489, 573, 874, 978, 1146, 1311, 2622, 3097, 3629, 3749, 4393, 6194, 7258, 7498, 8786, 9291, 10887, 11247, 13179, 18582, 21774, 22494, 26358, 31133, 62266, 71231, 83467, 93399, 142462, 166934, 186798, 213693, 250401, 427386, 500802, 591527, 716059, 1183054, 1432118, 1774581, 2148177, 3549162, 4296354, 13605121, 27210242, 40815363, 81630726]

約数ペア:

[(1, 81630726), (2, 40815363), (3, 27210242), (6, 13605121), (19, 4296354), (23, 3549162), (38, 2148177), (46, 1774581), (57, 1432118), (69, 1183054), (114, 716059), (138, 591527), (163, 500802), (191, 427386), (326, 250401), (382, 213693), (437, 186798), (489, 166934), (573, 142462), (874, 93399), (978, 83467), (1146, 71231), (1311, 62266), (2622, 31133), (3097, 26358), (3629, 22494), (3749, 21774), (4393, 18582), (6194, 13179), (7258, 11247), (7498, 10887), (8786, 9291)]