81279240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{601}}^1$

素因数の和:652

約数の個数: 192

約数和(自身を含む): 296472960

約数和(自身を除く): 215193720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 49, 56, 60, 69, 70, 84, 92, 98, 105, 115, 120, 138, 140, 147, 161, 168, 184, 196, 210, 230, 245, 276, 280, 294, 322, 345, 392, 420, 460, 483, 490, 552, 588, 601, 644, 690, 735, 805, 840, 920, 966, 980, 1127, 1176, 1202, 1288, 1380, 1470, 1610, 1803, 1932, 1960, 2254, 2404, 2415, 2760, 2940, 3005, 3220, 3381, 3606, 3864, 4207, 4508, 4808, 4830, 5635, 5880, 6010, 6440, 6762, 7212, 8414, 9015, 9016, 9660, 11270, 12020, 12621, 13524, 13823, 14424, 16828, 16905, 18030, 19320, 21035, 22540, 24040, 25242, 27048, 27646, 29449, 33656, 33810, 36060, 41469, 42070, 45080, 50484, 55292, 58898, 63105, 67620, 69115, 72120, 82938, 84140, 88347, 96761, 100968, 110584, 117796, 126210, 135240, 138230, 147245, 165876, 168280, 176694, 193522, 207345, 235592, 252420, 276460, 290283, 294490, 331752, 353388, 387044, 414690, 441735, 483805, 504840, 552920, 580566, 588980, 677327, 706776, 774088, 829380, 883470, 967610, 1161132, 1177960, 1354654, 1451415, 1658760, 1766940, 1935220, 2031981, 2322264, 2709308, 2902830, 3386635, 3533880, 3870440, 4063962, 5418616, 5805660, 6773270, 8127924, 10159905, 11611320, 13546540, 16255848, 20319810, 27093080, 40639620, 81279240]

約数ペア:

[(1, 81279240), (2, 40639620), (3, 27093080), (4, 20319810), (5, 16255848), (6, 13546540), (7, 11611320), (8, 10159905), (10, 8127924), (12, 6773270), (14, 5805660), (15, 5418616), (20, 4063962), (21, 3870440), (23, 3533880), (24, 3386635), (28, 2902830), (30, 2709308), (35, 2322264), (40, 2031981), (42, 1935220), (46, 1766940), (49, 1658760), (56, 1451415), (60, 1354654), (69, 1177960), (70, 1161132), (84, 967610), (92, 883470), (98, 829380), (105, 774088), (115, 706776), (120, 677327), (138, 588980), (140, 580566), (147, 552920), (161, 504840), (168, 483805), (184, 441735), (196, 414690), (210, 387044), (230, 353388), (245, 331752), (276, 294490), (280, 290283), (294, 276460), (322, 252420), (345, 235592), (392, 207345), (420, 193522), (460, 176694), (483, 168280), (490, 165876), (552, 147245), (588, 138230), (601, 135240), (644, 126210), (690, 117796), (735, 110584), (805, 100968), (840, 96761), (920, 88347), (966, 84140), (980, 82938), (1127, 72120), (1176, 69115), (1202, 67620), (1288, 63105), (1380, 58898), (1470, 55292), (1610, 50484), (1803, 45080), (1932, 42070), (1960, 41469), (2254, 36060), (2404, 33810), (2415, 33656), (2760, 29449), (2940, 27646), (3005, 27048), (3220, 25242), (3381, 24040), (3606, 22540), (3864, 21035), (4207, 19320), (4508, 18030), (4808, 16905), (4830, 16828), (5635, 14424), (5880, 13823), (6010, 13524), (6440, 12621), (6762, 12020), (7212, 11270), (8414, 9660), (9015, 9016)]