131791380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1949}}^1$

素因数の和:1998

約数の個数: 144

約数和(自身を含む): 448156800

約数和(自身を除く): 316365420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 196, 210, 230, 245, 276, 294, 322, 345, 420, 460, 483, 490, 588, 644, 690, 735, 805, 966, 980, 1127, 1380, 1470, 1610, 1932, 1949, 2254, 2415, 2940, 3220, 3381, 3898, 4508, 4830, 5635, 5847, 6762, 7796, 9660, 9745, 11270, 11694, 13524, 13643, 16905, 19490, 22540, 23388, 27286, 29235, 33810, 38980, 40929, 44827, 54572, 58470, 67620, 68215, 81858, 89654, 95501, 116940, 134481, 136430, 163716, 179308, 191002, 204645, 224135, 268962, 272860, 286503, 313789, 382004, 409290, 448270, 477505, 537924, 573006, 627578, 672405, 818580, 896540, 941367, 955010, 1146012, 1255156, 1344810, 1432515, 1568945, 1882734, 1910020, 2196523, 2689620, 2865030, 3137890, 3765468, 4393046, 4706835, 5730060, 6275780, 6589569, 8786092, 9413670, 10982615, 13179138, 18827340, 21965230, 26358276, 32947845, 43930460, 65895690, 131791380]

約数ペア:

[(1, 131791380), (2, 65895690), (3, 43930460), (4, 32947845), (5, 26358276), (6, 21965230), (7, 18827340), (10, 13179138), (12, 10982615), (14, 9413670), (15, 8786092), (20, 6589569), (21, 6275780), (23, 5730060), (28, 4706835), (30, 4393046), (35, 3765468), (42, 3137890), (46, 2865030), (49, 2689620), (60, 2196523), (69, 1910020), (70, 1882734), (84, 1568945), (92, 1432515), (98, 1344810), (105, 1255156), (115, 1146012), (138, 955010), (140, 941367), (147, 896540), (161, 818580), (196, 672405), (210, 627578), (230, 573006), (245, 537924), (276, 477505), (294, 448270), (322, 409290), (345, 382004), (420, 313789), (460, 286503), (483, 272860), (490, 268962), (588, 224135), (644, 204645), (690, 191002), (735, 179308), (805, 163716), (966, 136430), (980, 134481), (1127, 116940), (1380, 95501), (1470, 89654), (1610, 81858), (1932, 68215), (1949, 67620), (2254, 58470), (2415, 54572), (2940, 44827), (3220, 40929), (3381, 38980), (3898, 33810), (4508, 29235), (4830, 27286), (5635, 23388), (5847, 22540), (6762, 19490), (7796, 16905), (9660, 13643), (9745, 13524), (11270, 11694)]