81636144

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{661}}^1$

素因数の和:786

約数の個数: 80

約数和(自身を含む): 220652544

約数和(自身を除く): 139016400

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 83, 93, 124, 166, 186, 248, 249, 332, 372, 496, 498, 661, 664, 744, 996, 1322, 1328, 1488, 1983, 1992, 2573, 2644, 3966, 3984, 5146, 5288, 7719, 7932, 10292, 10576, 15438, 15864, 20491, 20584, 30876, 31728, 40982, 41168, 54863, 61473, 61752, 81964, 109726, 122946, 123504, 163928, 164589, 219452, 245892, 327856, 329178, 438904, 491784, 658356, 877808, 983568, 1316712, 1700753, 2633424, 3401506, 5102259, 6803012, 10204518, 13606024, 20409036, 27212048, 40818072, 81636144]

約数ペア:

[(1, 81636144), (2, 40818072), (3, 27212048), (4, 20409036), (6, 13606024), (8, 10204518), (12, 6803012), (16, 5102259), (24, 3401506), (31, 2633424), (48, 1700753), (62, 1316712), (83, 983568), (93, 877808), (124, 658356), (166, 491784), (186, 438904), (248, 329178), (249, 327856), (332, 245892), (372, 219452), (496, 164589), (498, 163928), (661, 123504), (664, 122946), (744, 109726), (996, 81964), (1322, 61752), (1328, 61473), (1488, 54863), (1983, 41168), (1992, 40982), (2573, 31728), (2644, 30876), (3966, 20584), (3984, 20491), (5146, 15864), (5288, 15438), (7719, 10576), (7932, 10292)]