31909878

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:80

約数の個数: 216

約数和(自身を含む): 99341424

約数和(自身を除く): 67431546

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 23, 26, 33, 39, 42, 46, 49, 63, 66, 69, 77, 78, 91, 98, 99, 117, 121, 126, 138, 143, 147, 154, 161, 182, 198, 207, 231, 234, 242, 253, 273, 286, 294, 299, 322, 363, 414, 429, 441, 462, 483, 506, 539, 546, 598, 637, 693, 726, 759, 819, 847, 858, 882, 897, 966, 1001, 1078, 1089, 1127, 1274, 1287, 1386, 1449, 1518, 1573, 1617, 1638, 1694, 1771, 1794, 1911, 2002, 2093, 2178, 2254, 2277, 2541, 2574, 2691, 2783, 2898, 3003, 3146, 3234, 3289, 3381, 3542, 3822, 4186, 4554, 4719, 4851, 5082, 5313, 5382, 5566, 5733, 5929, 6006, 6279, 6578, 6762, 7007, 7623, 8349, 9009, 9438, 9702, 9867, 10143, 10626, 11011, 11466, 11858, 12397, 12558, 14014, 14157, 14651, 15246, 15939, 16698, 17787, 18018, 18837, 19481, 19734, 20286, 21021, 22022, 23023, 24794, 25047, 28314, 29302, 29601, 31878, 33033, 35574, 36179, 37191, 37674, 38962, 42042, 43953, 46046, 50094, 53361, 58443, 59202, 63063, 66066, 69069, 72358, 74382, 77077, 87906, 99099, 106722, 108537, 111573, 116886, 126126, 131859, 136367, 138138, 154154, 161161, 175329, 198198, 207207, 217074, 223146, 231231, 253253, 263718, 272734, 322322, 325611, 350658, 409101, 414414, 462462, 483483, 506506, 651222, 693693, 759759, 818202, 966966, 1227303, 1387386, 1450449, 1519518, 1772771, 2279277, 2454606, 2900898, 3545542, 4558554, 5318313, 10636626, 15954939, 31909878]

約数ペア:

[(1, 31909878), (2, 15954939), (3, 10636626), (6, 5318313), (7, 4558554), (9, 3545542), (11, 2900898), (13, 2454606), (14, 2279277), (18, 1772771), (21, 1519518), (22, 1450449), (23, 1387386), (26, 1227303), (33, 966966), (39, 818202), (42, 759759), (46, 693693), (49, 651222), (63, 506506), (66, 483483), (69, 462462), (77, 414414), (78, 409101), (91, 350658), (98, 325611), (99, 322322), (117, 272734), (121, 263718), (126, 253253), (138, 231231), (143, 223146), (147, 217074), (154, 207207), (161, 198198), (182, 175329), (198, 161161), (207, 154154), (231, 138138), (234, 136367), (242, 131859), (253, 126126), (273, 116886), (286, 111573), (294, 108537), (299, 106722), (322, 99099), (363, 87906), (414, 77077), (429, 74382), (441, 72358), (462, 69069), (483, 66066), (506, 63063), (539, 59202), (546, 58443), (598, 53361), (637, 50094), (693, 46046), (726, 43953), (759, 42042), (819, 38962), (847, 37674), (858, 37191), (882, 36179), (897, 35574), (966, 33033), (1001, 31878), (1078, 29601), (1089, 29302), (1127, 28314), (1274, 25047), (1287, 24794), (1386, 23023), (1449, 22022), (1518, 21021), (1573, 20286), (1617, 19734), (1638, 19481), (1694, 18837), (1771, 18018), (1794, 17787), (1911, 16698), (2002, 15939), (2093, 15246), (2178, 14651), (2254, 14157), (2277, 14014), (2541, 12558), (2574, 12397), (2691, 11858), (2783, 11466), (2898, 11011), (3003, 10626), (3146, 10143), (3234, 9867), (3289, 9702), (3381, 9438), (3542, 9009), (3822, 8349), (4186, 7623), (4554, 7007), (4719, 6762), (4851, 6578), (5082, 6279), (5313, 6006), (5382, 5929), (5566, 5733)]