1991493816

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{10837}}^1$

素因数の和:10909

約数の個数: 128

約数和(自身を含む): 5826508800

約数和(自身を除く): 3835014984

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 31, 38, 39, 52, 57, 62, 76, 78, 93, 104, 114, 124, 152, 156, 186, 228, 247, 248, 312, 372, 403, 456, 494, 589, 741, 744, 806, 988, 1178, 1209, 1482, 1612, 1767, 1976, 2356, 2418, 2964, 3224, 3534, 4712, 4836, 5928, 7068, 7657, 9672, 10837, 14136, 15314, 21674, 22971, 30628, 32511, 43348, 45942, 61256, 65022, 86696, 91884, 130044, 140881, 183768, 205903, 260088, 281762, 335947, 411806, 422643, 563524, 617709, 671894, 823612, 845286, 1007841, 1127048, 1235418, 1343788, 1647224, 1690572, 2015682, 2470836, 2676739, 2687576, 3381144, 4031364, 4367311, 4941672, 5353478, 6382993, 8030217, 8062728, 8734622, 10706956, 12765986, 13101933, 16060434, 17469244, 19148979, 21413912, 25531972, 26203866, 32120868, 34938488, 38297958, 51063944, 52407732, 64241736, 76595916, 82978909, 104815464, 153191832, 165957818, 248936727, 331915636, 497873454, 663831272, 995746908, 1991493816]

約数ペア:

[(1, 1991493816), (2, 995746908), (3, 663831272), (4, 497873454), (6, 331915636), (8, 248936727), (12, 165957818), (13, 153191832), (19, 104815464), (24, 82978909), (26, 76595916), (31, 64241736), (38, 52407732), (39, 51063944), (52, 38297958), (57, 34938488), (62, 32120868), (76, 26203866), (78, 25531972), (93, 21413912), (104, 19148979), (114, 17469244), (124, 16060434), (152, 13101933), (156, 12765986), (186, 10706956), (228, 8734622), (247, 8062728), (248, 8030217), (312, 6382993), (372, 5353478), (403, 4941672), (456, 4367311), (494, 4031364), (589, 3381144), (741, 2687576), (744, 2676739), (806, 2470836), (988, 2015682), (1178, 1690572), (1209, 1647224), (1482, 1343788), (1612, 1235418), (1767, 1127048), (1976, 1007841), (2356, 845286), (2418, 823612), (2964, 671894), (3224, 617709), (3534, 563524), (4712, 422643), (4836, 411806), (5928, 335947), (7068, 281762), (7657, 260088), (9672, 205903), (10837, 183768), (14136, 140881), (15314, 130044), (21674, 91884), (22971, 86696), (30628, 65022), (32511, 61256), (43348, 45942)]