82281780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:539

約数の個数: 216

約数和(自身を含む): 306240480

約数和(自身を除く): 223958700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 49, 57, 60, 63, 70, 76, 84, 90, 95, 98, 105, 114, 126, 133, 140, 147, 171, 180, 190, 196, 210, 228, 245, 252, 266, 285, 294, 315, 342, 380, 399, 420, 441, 490, 491, 532, 570, 588, 630, 665, 684, 735, 798, 855, 882, 931, 980, 982, 1140, 1197, 1260, 1330, 1470, 1473, 1596, 1710, 1764, 1862, 1964, 1995, 2205, 2394, 2455, 2660, 2793, 2940, 2946, 3420, 3437, 3724, 3990, 4410, 4419, 4655, 4788, 4910, 5586, 5892, 5985, 6874, 7365, 7980, 8379, 8820, 8838, 9310, 9329, 9820, 10311, 11172, 11970, 13748, 13965, 14730, 16758, 17185, 17676, 18620, 18658, 20622, 22095, 23940, 24059, 27930, 27987, 29460, 30933, 33516, 34370, 37316, 41244, 41895, 44190, 46645, 48118, 51555, 55860, 55974, 61866, 65303, 68740, 72177, 83790, 83961, 88380, 93290, 96236, 103110, 111948, 120295, 123732, 130606, 139935, 144354, 154665, 167580, 167922, 186580, 195909, 206220, 216531, 240590, 261212, 279870, 288708, 309330, 326515, 335844, 360885, 391818, 419805, 433062, 457121, 481180, 559740, 587727, 618660, 653030, 721770, 783636, 839610, 866124, 914242, 979545, 1082655, 1175454, 1306060, 1371363, 1443540, 1679220, 1828484, 1959090, 2165310, 2285605, 2350908, 2742726, 2938635, 3918180, 4114089, 4330620, 4571210, 5485452, 5877270, 6856815, 8228178, 9142420, 11754540, 13713630, 16456356, 20570445, 27427260, 41140890, 82281780]

約数ペア:

[(1, 82281780), (2, 41140890), (3, 27427260), (4, 20570445), (5, 16456356), (6, 13713630), (7, 11754540), (9, 9142420), (10, 8228178), (12, 6856815), (14, 5877270), (15, 5485452), (18, 4571210), (19, 4330620), (20, 4114089), (21, 3918180), (28, 2938635), (30, 2742726), (35, 2350908), (36, 2285605), (38, 2165310), (42, 1959090), (45, 1828484), (49, 1679220), (57, 1443540), (60, 1371363), (63, 1306060), (70, 1175454), (76, 1082655), (84, 979545), (90, 914242), (95, 866124), (98, 839610), (105, 783636), (114, 721770), (126, 653030), (133, 618660), (140, 587727), (147, 559740), (171, 481180), (180, 457121), (190, 433062), (196, 419805), (210, 391818), (228, 360885), (245, 335844), (252, 326515), (266, 309330), (285, 288708), (294, 279870), (315, 261212), (342, 240590), (380, 216531), (399, 206220), (420, 195909), (441, 186580), (490, 167922), (491, 167580), (532, 154665), (570, 144354), (588, 139935), (630, 130606), (665, 123732), (684, 120295), (735, 111948), (798, 103110), (855, 96236), (882, 93290), (931, 88380), (980, 83961), (982, 83790), (1140, 72177), (1197, 68740), (1260, 65303), (1330, 61866), (1470, 55974), (1473, 55860), (1596, 51555), (1710, 48118), (1764, 46645), (1862, 44190), (1964, 41895), (1995, 41244), (2205, 37316), (2394, 34370), (2455, 33516), (2660, 30933), (2793, 29460), (2940, 27987), (2946, 27930), (3420, 24059), (3437, 23940), (3724, 22095), (3990, 20622), (4410, 18658), (4419, 18620), (4655, 17676), (4788, 17185), (4910, 16758), (5586, 14730), (5892, 13965), (5985, 13748), (6874, 11970), (7365, 11172), (7980, 10311), (8379, 9820), (8820, 9329), (8838, 9310)]