81288324

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:498

約数の個数: 108

約数和(自身を含む): 230211072

約数和(自身を除く): 148922748

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 169, 186, 234, 279, 338, 372, 403, 431, 468, 507, 558, 676, 806, 862, 1014, 1116, 1209, 1293, 1521, 1612, 1724, 2028, 2418, 2586, 3042, 3627, 3879, 4836, 5172, 5239, 5603, 6084, 7254, 7758, 10478, 11206, 13361, 14508, 15516, 15717, 16809, 20956, 22412, 26722, 31434, 33618, 40083, 47151, 50427, 53444, 62868, 67236, 72839, 80166, 94302, 100854, 120249, 145678, 160332, 173693, 188604, 201708, 218517, 240498, 291356, 347386, 437034, 480996, 521079, 655551, 694772, 874068, 1042158, 1311102, 1563237, 2084316, 2258009, 2622204, 3126474, 4516018, 6252948, 6774027, 9032036, 13548054, 20322081, 27096108, 40644162, 81288324]

約数ペア:

[(1, 81288324), (2, 40644162), (3, 27096108), (4, 20322081), (6, 13548054), (9, 9032036), (12, 6774027), (13, 6252948), (18, 4516018), (26, 3126474), (31, 2622204), (36, 2258009), (39, 2084316), (52, 1563237), (62, 1311102), (78, 1042158), (93, 874068), (117, 694772), (124, 655551), (156, 521079), (169, 480996), (186, 437034), (234, 347386), (279, 291356), (338, 240498), (372, 218517), (403, 201708), (431, 188604), (468, 173693), (507, 160332), (558, 145678), (676, 120249), (806, 100854), (862, 94302), (1014, 80166), (1116, 72839), (1209, 67236), (1293, 62868), (1521, 53444), (1612, 50427), (1724, 47151), (2028, 40083), (2418, 33618), (2586, 31434), (3042, 26722), (3627, 22412), (3879, 20956), (4836, 16809), (5172, 15717), (5239, 15516), (5603, 14508), (6084, 13361), (7254, 11206), (7758, 10478)]