81887850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:333

約数の個数: 144

約数和(自身を含む): 244430784

約数和(自身を除く): 162542934

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 66, 71, 75, 90, 99, 110, 142, 150, 165, 198, 213, 225, 233, 275, 330, 355, 426, 450, 466, 495, 550, 639, 699, 710, 781, 825, 990, 1065, 1165, 1278, 1398, 1562, 1650, 1775, 2097, 2130, 2330, 2343, 2475, 2563, 3195, 3495, 3550, 3905, 4194, 4686, 4950, 5126, 5325, 5825, 6390, 6990, 7029, 7689, 7810, 10485, 10650, 11650, 11715, 12815, 14058, 15378, 15975, 16543, 17475, 19525, 20970, 23067, 23430, 25630, 31950, 33086, 34950, 35145, 38445, 39050, 46134, 49629, 52425, 58575, 64075, 70290, 76890, 82715, 99258, 104850, 115335, 117150, 128150, 148887, 165430, 175725, 181973, 192225, 230670, 248145, 297774, 351450, 363946, 384450, 413575, 496290, 545919, 576675, 744435, 827150, 909865, 1091838, 1153350, 1240725, 1488870, 1637757, 1819730, 2481450, 2729595, 3275514, 3722175, 4549325, 5459190, 7444350, 8188785, 9098650, 13647975, 16377570, 27295950, 40943925, 81887850]

約数ペア:

[(1, 81887850), (2, 40943925), (3, 27295950), (5, 16377570), (6, 13647975), (9, 9098650), (10, 8188785), (11, 7444350), (15, 5459190), (18, 4549325), (22, 3722175), (25, 3275514), (30, 2729595), (33, 2481450), (45, 1819730), (50, 1637757), (55, 1488870), (66, 1240725), (71, 1153350), (75, 1091838), (90, 909865), (99, 827150), (110, 744435), (142, 576675), (150, 545919), (165, 496290), (198, 413575), (213, 384450), (225, 363946), (233, 351450), (275, 297774), (330, 248145), (355, 230670), (426, 192225), (450, 181973), (466, 175725), (495, 165430), (550, 148887), (639, 128150), (699, 117150), (710, 115335), (781, 104850), (825, 99258), (990, 82715), (1065, 76890), (1165, 70290), (1278, 64075), (1398, 58575), (1562, 52425), (1650, 49629), (1775, 46134), (2097, 39050), (2130, 38445), (2330, 35145), (2343, 34950), (2475, 33086), (2563, 31950), (3195, 25630), (3495, 23430), (3550, 23067), (3905, 20970), (4194, 19525), (4686, 17475), (4950, 16543), (5126, 15975), (5325, 15378), (5825, 14058), (6390, 12815), (6990, 11715), (7029, 11650), (7689, 10650), (7810, 10485)]