1991620008

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{857}}^1$

素因数の和:961

約数の個数: 256

約数和(自身を含む): 6671808000

約数和(自身を除く): 4680187992

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 29, 36, 42, 53, 54, 56, 58, 63, 72, 84, 87, 106, 108, 116, 126, 159, 168, 174, 189, 203, 212, 216, 232, 252, 261, 318, 348, 371, 378, 406, 424, 477, 504, 522, 609, 636, 696, 742, 756, 783, 812, 857, 954, 1044, 1113, 1218, 1272, 1431, 1484, 1512, 1537, 1566, 1624, 1714, 1827, 1908, 2088, 2226, 2436, 2571, 2862, 2968, 3074, 3132, 3339, 3428, 3654, 3816, 4452, 4611, 4872, 5142, 5481, 5724, 5999, 6148, 6264, 6678, 6856, 7308, 7713, 8904, 9222, 10017, 10284, 10759, 10962, 11448, 11998, 12296, 13356, 13833, 14616, 15426, 17997, 18444, 20034, 20568, 21518, 21924, 23139, 23996, 24853, 26712, 27666, 30852, 32277, 35994, 36888, 40068, 41499, 43036, 43848, 45421, 46278, 47992, 49706, 53991, 55332, 61704, 64554, 71988, 74559, 80136, 82998, 86072, 90842, 92556, 96831, 99412, 107982, 110664, 129108, 136263, 143976, 149118, 161973, 165996, 173971, 181684, 185112, 193662, 198824, 215964, 223677, 258216, 272526, 290493, 298236, 317947, 323946, 331992, 347942, 363368, 387324, 408789, 431928, 447354, 521913, 545052, 580986, 596472, 635894, 647892, 671031, 695884, 774648, 817578, 894708, 953841, 1043826, 1090104, 1161972, 1226367, 1271788, 1295784, 1317209, 1342062, 1391768, 1565739, 1635156, 1789416, 1907682, 2087652, 2323944, 2452734, 2543576, 2634418, 2684124, 2861523, 3131478, 3270312, 3815364, 3951627, 4175304, 4697217, 4905468, 5268836, 5368248, 5723046, 6262956, 7630728, 7903254, 8584569, 9220463, 9394434, 9810936, 10537672, 11446092, 11854881, 12525912, 15806508, 17169138, 18440926, 18788868, 22892184, 23709762, 27661389, 31613016, 34338276, 35564643, 36881852, 37577736, 47419524, 55322778, 68676552, 71129286, 73763704, 82984167, 94839048, 110645556, 142258572, 165968334, 221291112, 248952501, 284517144, 331936668, 497905002, 663873336, 995810004, 1991620008]

約数ペア:

[(1, 1991620008), (2, 995810004), (3, 663873336), (4, 497905002), (6, 331936668), (7, 284517144), (8, 248952501), (9, 221291112), (12, 165968334), (14, 142258572), (18, 110645556), (21, 94839048), (24, 82984167), (27, 73763704), (28, 71129286), (29, 68676552), (36, 55322778), (42, 47419524), (53, 37577736), (54, 36881852), (56, 35564643), (58, 34338276), (63, 31613016), (72, 27661389), (84, 23709762), (87, 22892184), (106, 18788868), (108, 18440926), (116, 17169138), (126, 15806508), (159, 12525912), (168, 11854881), (174, 11446092), (189, 10537672), (203, 9810936), (212, 9394434), (216, 9220463), (232, 8584569), (252, 7903254), (261, 7630728), (318, 6262956), (348, 5723046), (371, 5368248), (378, 5268836), (406, 4905468), (424, 4697217), (477, 4175304), (504, 3951627), (522, 3815364), (609, 3270312), (636, 3131478), (696, 2861523), (742, 2684124), (756, 2634418), (783, 2543576), (812, 2452734), (857, 2323944), (954, 2087652), (1044, 1907682), (1113, 1789416), (1218, 1635156), (1272, 1565739), (1431, 1391768), (1484, 1342062), (1512, 1317209), (1537, 1295784), (1566, 1271788), (1624, 1226367), (1714, 1161972), (1827, 1090104), (1908, 1043826), (2088, 953841), (2226, 894708), (2436, 817578), (2571, 774648), (2862, 695884), (2968, 671031), (3074, 647892), (3132, 635894), (3339, 596472), (3428, 580986), (3654, 545052), (3816, 521913), (4452, 447354), (4611, 431928), (4872, 408789), (5142, 387324), (5481, 363368), (5724, 347942), (5999, 331992), (6148, 323946), (6264, 317947), (6678, 298236), (6856, 290493), (7308, 272526), (7713, 258216), (8904, 223677), (9222, 215964), (10017, 198824), (10284, 193662), (10759, 185112), (10962, 181684), (11448, 173971), (11998, 165996), (12296, 161973), (13356, 149118), (13833, 143976), (14616, 136263), (15426, 129108), (17997, 110664), (18444, 107982), (20034, 99412), (20568, 96831), (21518, 92556), (21924, 90842), (23139, 86072), (23996, 82998), (24853, 80136), (26712, 74559), (27666, 71988), (30852, 64554), (32277, 61704), (35994, 55332), (36888, 53991), (40068, 49706), (41499, 47992), (43036, 46278), (43848, 45421)]