81339288

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 228096000

約数和(自身を除く): 146756712

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 31, 34, 51, 59, 62, 68, 93, 102, 109, 118, 124, 136, 177, 186, 204, 218, 236, 248, 327, 354, 372, 408, 436, 472, 527, 654, 708, 744, 872, 1003, 1054, 1308, 1416, 1581, 1829, 1853, 2006, 2108, 2616, 3009, 3162, 3379, 3658, 3706, 4012, 4216, 5487, 5559, 6018, 6324, 6431, 6758, 7316, 7412, 8024, 10137, 10974, 11118, 12036, 12648, 12862, 13516, 14632, 14824, 19293, 20274, 21948, 22236, 24072, 25724, 27032, 31093, 38586, 40548, 43896, 44472, 51448, 57443, 62186, 77172, 81096, 93279, 109327, 114886, 124372, 154344, 172329, 186558, 199361, 218654, 229772, 248744, 327981, 344658, 373116, 398722, 437308, 459544, 598083, 655962, 689316, 746232, 797444, 874616, 1196166, 1311924, 1378632, 1594888, 2392332, 2623848, 3389137, 4784664, 6778274, 10167411, 13556548, 20334822, 27113096, 40669644, 81339288]

約数ペア:

[(1, 81339288), (2, 40669644), (3, 27113096), (4, 20334822), (6, 13556548), (8, 10167411), (12, 6778274), (17, 4784664), (24, 3389137), (31, 2623848), (34, 2392332), (51, 1594888), (59, 1378632), (62, 1311924), (68, 1196166), (93, 874616), (102, 797444), (109, 746232), (118, 689316), (124, 655962), (136, 598083), (177, 459544), (186, 437308), (204, 398722), (218, 373116), (236, 344658), (248, 327981), (327, 248744), (354, 229772), (372, 218654), (408, 199361), (436, 186558), (472, 172329), (527, 154344), (654, 124372), (708, 114886), (744, 109327), (872, 93279), (1003, 81096), (1054, 77172), (1308, 62186), (1416, 57443), (1581, 51448), (1829, 44472), (1853, 43896), (2006, 40548), (2108, 38586), (2616, 31093), (3009, 27032), (3162, 25724), (3379, 24072), (3658, 22236), (3706, 21948), (4012, 20274), (4216, 19293), (5487, 14824), (5559, 14632), (6018, 13516), (6324, 12862), (6431, 12648), (6758, 12036), (7316, 11118), (7412, 10974), (8024, 10137)]