85319780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 231796656

約数和(自身を除く): 146476876

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 37, 49, 52, 65, 70, 74, 91, 98, 130, 140, 148, 181, 182, 185, 196, 245, 259, 260, 362, 364, 370, 455, 481, 490, 518, 637, 724, 740, 905, 910, 962, 980, 1036, 1267, 1274, 1295, 1810, 1813, 1820, 1924, 2353, 2405, 2534, 2548, 2590, 3185, 3367, 3620, 3626, 4706, 4810, 5068, 5180, 6335, 6370, 6697, 6734, 7252, 8869, 9065, 9412, 9620, 11765, 12670, 12740, 13394, 13468, 16471, 16835, 17738, 18130, 23530, 23569, 25340, 26788, 32942, 33485, 33670, 35476, 36260, 44345, 46879, 47060, 47138, 65884, 66970, 67340, 82355, 87061, 88690, 93758, 94276, 115297, 117845, 133940, 164710, 174122, 177380, 187516, 230594, 234395, 235690, 328153, 329420, 348244, 435305, 461188, 468790, 471380, 576485, 609427, 656306, 870610, 937580, 1152970, 1218854, 1312612, 1640765, 1741220, 2305940, 2437708, 3047135, 3281530, 4265989, 6094270, 6563060, 8531978, 12188540, 17063956, 21329945, 42659890, 85319780]

約数ペア:

[(1, 85319780), (2, 42659890), (4, 21329945), (5, 17063956), (7, 12188540), (10, 8531978), (13, 6563060), (14, 6094270), (20, 4265989), (26, 3281530), (28, 3047135), (35, 2437708), (37, 2305940), (49, 1741220), (52, 1640765), (65, 1312612), (70, 1218854), (74, 1152970), (91, 937580), (98, 870610), (130, 656306), (140, 609427), (148, 576485), (181, 471380), (182, 468790), (185, 461188), (196, 435305), (245, 348244), (259, 329420), (260, 328153), (362, 235690), (364, 234395), (370, 230594), (455, 187516), (481, 177380), (490, 174122), (518, 164710), (637, 133940), (724, 117845), (740, 115297), (905, 94276), (910, 93758), (962, 88690), (980, 87061), (1036, 82355), (1267, 67340), (1274, 66970), (1295, 65884), (1810, 47138), (1813, 47060), (1820, 46879), (1924, 44345), (2353, 36260), (2405, 35476), (2534, 33670), (2548, 33485), (2590, 32942), (3185, 26788), (3367, 25340), (3620, 23569), (3626, 23530), (4706, 18130), (4810, 17738), (5068, 16835), (5180, 16471), (6335, 13468), (6370, 13394), (6697, 12740), (6734, 12670), (7252, 11765), (8869, 9620), (9065, 9412)]