81979872

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 144

約数和(自身を含む): 242016768

約数和(自身を除く): 160036896

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 78, 93, 96, 104, 124, 156, 163, 169, 186, 208, 248, 312, 326, 338, 372, 403, 416, 489, 496, 507, 624, 652, 676, 744, 806, 978, 992, 1014, 1209, 1248, 1304, 1352, 1488, 1612, 1956, 2028, 2119, 2418, 2608, 2704, 2976, 3224, 3912, 4056, 4238, 4836, 5053, 5216, 5239, 5408, 6357, 6448, 7824, 8112, 8476, 9672, 10106, 10478, 12714, 12896, 15159, 15648, 15717, 16224, 16952, 19344, 20212, 20956, 25428, 27547, 30318, 31434, 33904, 38688, 40424, 41912, 50856, 55094, 60636, 62868, 65689, 67808, 80848, 82641, 83824, 101712, 110188, 121272, 125736, 131378, 161696, 165282, 167648, 197067, 203424, 220376, 242544, 251472, 262756, 330564, 394134, 440752, 485088, 502944, 525512, 661128, 788268, 853957, 881504, 1051024, 1322256, 1576536, 1707914, 2102048, 2561871, 2644512, 3153072, 3415828, 5123742, 6306144, 6831656, 10247484, 13663312, 20494968, 27326624, 40989936, 81979872]

約数ペア:

[(1, 81979872), (2, 40989936), (3, 27326624), (4, 20494968), (6, 13663312), (8, 10247484), (12, 6831656), (13, 6306144), (16, 5123742), (24, 3415828), (26, 3153072), (31, 2644512), (32, 2561871), (39, 2102048), (48, 1707914), (52, 1576536), (62, 1322256), (78, 1051024), (93, 881504), (96, 853957), (104, 788268), (124, 661128), (156, 525512), (163, 502944), (169, 485088), (186, 440752), (208, 394134), (248, 330564), (312, 262756), (326, 251472), (338, 242544), (372, 220376), (403, 203424), (416, 197067), (489, 167648), (496, 165282), (507, 161696), (624, 131378), (652, 125736), (676, 121272), (744, 110188), (806, 101712), (978, 83824), (992, 82641), (1014, 80848), (1209, 67808), (1248, 65689), (1304, 62868), (1352, 60636), (1488, 55094), (1612, 50856), (1956, 41912), (2028, 40424), (2119, 38688), (2418, 33904), (2608, 31434), (2704, 30318), (2976, 27547), (3224, 25428), (3912, 20956), (4056, 20212), (4238, 19344), (4836, 16952), (5053, 16224), (5216, 15717), (5239, 15648), (5408, 15159), (6357, 12896), (6448, 12714), (7824, 10478), (8112, 10106), (8476, 9672)]