81617340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:137

約数の個数: 288

約数和(自身を含む): 297851904

約数和(自身を除く): 216234564

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 23, 28, 30, 34, 35, 42, 46, 49, 51, 60, 68, 69, 70, 71, 84, 85, 92, 98, 102, 105, 115, 119, 138, 140, 142, 147, 161, 170, 196, 204, 210, 213, 230, 238, 245, 255, 276, 284, 294, 322, 340, 345, 355, 357, 391, 420, 426, 460, 476, 483, 490, 497, 510, 588, 595, 644, 690, 710, 714, 735, 782, 805, 833, 852, 966, 980, 994, 1020, 1065, 1127, 1173, 1190, 1207, 1380, 1420, 1428, 1470, 1491, 1564, 1610, 1633, 1666, 1785, 1932, 1955, 1988, 2130, 2254, 2346, 2380, 2414, 2415, 2485, 2499, 2737, 2940, 2982, 3220, 3266, 3332, 3381, 3479, 3570, 3621, 3910, 4165, 4260, 4508, 4692, 4828, 4830, 4899, 4970, 4998, 5474, 5635, 5865, 5964, 6035, 6532, 6762, 6958, 7140, 7242, 7455, 7820, 8165, 8211, 8330, 8449, 9660, 9798, 9940, 9996, 10437, 10948, 11270, 11431, 11730, 12070, 12495, 13524, 13685, 13916, 14484, 14910, 16330, 16422, 16660, 16898, 16905, 17395, 18105, 19159, 19596, 20874, 22540, 22862, 23460, 24140, 24495, 24990, 25347, 27370, 27761, 29820, 32660, 32844, 33796, 33810, 34293, 34790, 36210, 38318, 41055, 41748, 42245, 45724, 48990, 49980, 50694, 52185, 54740, 55522, 57155, 57477, 59143, 67620, 68586, 69580, 72420, 76636, 80017, 82110, 83283, 84490, 95795, 97980, 101388, 104370, 111044, 114310, 114954, 118286, 126735, 137172, 138805, 160034, 164220, 166566, 168980, 171465, 177429, 191590, 194327, 208740, 228620, 229908, 236572, 240051, 253470, 277610, 287385, 295715, 320068, 333132, 342930, 354858, 383180, 388654, 400085, 416415, 480102, 506940, 555220, 574770, 582981, 591430, 685860, 709716, 777308, 800170, 832830, 887145, 960204, 971635, 1149540, 1165962, 1182860, 1200255, 1360289, 1600340, 1665660, 1774290, 1943270, 2331924, 2400510, 2720578, 2914905, 3548580, 3886540, 4080867, 4801020, 5441156, 5829810, 6801445, 8161734, 11659620, 13602890, 16323468, 20404335, 27205780, 40808670, 81617340]

約数ペア:

[(1, 81617340), (2, 40808670), (3, 27205780), (4, 20404335), (5, 16323468), (6, 13602890), (7, 11659620), (10, 8161734), (12, 6801445), (14, 5829810), (15, 5441156), (17, 4801020), (20, 4080867), (21, 3886540), (23, 3548580), (28, 2914905), (30, 2720578), (34, 2400510), (35, 2331924), (42, 1943270), (46, 1774290), (49, 1665660), (51, 1600340), (60, 1360289), (68, 1200255), (69, 1182860), (70, 1165962), (71, 1149540), (84, 971635), (85, 960204), (92, 887145), (98, 832830), (102, 800170), (105, 777308), (115, 709716), (119, 685860), (138, 591430), (140, 582981), (142, 574770), (147, 555220), (161, 506940), (170, 480102), (196, 416415), (204, 400085), (210, 388654), (213, 383180), (230, 354858), (238, 342930), (245, 333132), (255, 320068), (276, 295715), (284, 287385), (294, 277610), (322, 253470), (340, 240051), (345, 236572), (355, 229908), (357, 228620), (391, 208740), (420, 194327), (426, 191590), (460, 177429), (476, 171465), (483, 168980), (490, 166566), (497, 164220), (510, 160034), (588, 138805), (595, 137172), (644, 126735), (690, 118286), (710, 114954), (714, 114310), (735, 111044), (782, 104370), (805, 101388), (833, 97980), (852, 95795), (966, 84490), (980, 83283), (994, 82110), (1020, 80017), (1065, 76636), (1127, 72420), (1173, 69580), (1190, 68586), (1207, 67620), (1380, 59143), (1420, 57477), (1428, 57155), (1470, 55522), (1491, 54740), (1564, 52185), (1610, 50694), (1633, 49980), (1666, 48990), (1785, 45724), (1932, 42245), (1955, 41748), (1988, 41055), (2130, 38318), (2254, 36210), (2346, 34790), (2380, 34293), (2414, 33810), (2415, 33796), (2485, 32844), (2499, 32660), (2737, 29820), (2940, 27761), (2982, 27370), (3220, 25347), (3266, 24990), (3332, 24495), (3381, 24140), (3479, 23460), (3570, 22862), (3621, 22540), (3910, 20874), (4165, 19596), (4260, 19159), (4508, 18105), (4692, 17395), (4828, 16905), (4830, 16898), (4899, 16660), (4970, 16422), (4998, 16330), (5474, 14910), (5635, 14484), (5865, 13916), (5964, 13685), (6035, 13524), (6532, 12495), (6762, 12070), (6958, 11730), (7140, 11431), (7242, 11270), (7455, 10948), (7820, 10437), (8165, 9996), (8211, 9940), (8330, 9798), (8449, 9660)]