781213860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3851}}^1$

素因数の和:3903

約数の個数: 216

約数和(自身を含む): 2877166656

約数和(自身を除く): 2095952796

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 49, 60, 63, 69, 70, 84, 90, 92, 98, 105, 115, 126, 138, 140, 147, 161, 180, 196, 207, 210, 230, 245, 252, 276, 294, 315, 322, 345, 414, 420, 441, 460, 483, 490, 588, 630, 644, 690, 735, 805, 828, 882, 966, 980, 1035, 1127, 1260, 1380, 1449, 1470, 1610, 1764, 1932, 2070, 2205, 2254, 2415, 2898, 2940, 3220, 3381, 3851, 4140, 4410, 4508, 4830, 5635, 5796, 6762, 7245, 7702, 8820, 9660, 10143, 11270, 11553, 13524, 14490, 15404, 16905, 19255, 20286, 22540, 23106, 26957, 28980, 33810, 34659, 38510, 40572, 46212, 50715, 53914, 57765, 67620, 69318, 77020, 80871, 88573, 101430, 107828, 115530, 134785, 138636, 161742, 173295, 177146, 188699, 202860, 231060, 242613, 265719, 269570, 323484, 346590, 354292, 377398, 404355, 442865, 485226, 531438, 539140, 566097, 620011, 693180, 754796, 797157, 808710, 885730, 943495, 970452, 1062876, 1132194, 1213065, 1240022, 1328595, 1594314, 1617420, 1698291, 1771460, 1860033, 1886990, 2264388, 2426130, 2480044, 2657190, 2830485, 3100055, 3188628, 3396582, 3720066, 3773980, 3985785, 4340077, 4852260, 5314380, 5580099, 5660970, 6200110, 6793164, 7440132, 7971570, 8491455, 8680154, 9300165, 11160198, 11321940, 12400220, 13020231, 15943140, 16982910, 17360308, 18600330, 21700385, 22320396, 26040462, 27900495, 33965820, 37200660, 39060693, 43400770, 52080924, 55800990, 65101155, 78121386, 86801540, 111601980, 130202310, 156242772, 195303465, 260404620, 390606930, 781213860]

約数ペア:

[(1, 781213860), (2, 390606930), (3, 260404620), (4, 195303465), (5, 156242772), (6, 130202310), (7, 111601980), (9, 86801540), (10, 78121386), (12, 65101155), (14, 55800990), (15, 52080924), (18, 43400770), (20, 39060693), (21, 37200660), (23, 33965820), (28, 27900495), (30, 26040462), (35, 22320396), (36, 21700385), (42, 18600330), (45, 17360308), (46, 16982910), (49, 15943140), (60, 13020231), (63, 12400220), (69, 11321940), (70, 11160198), (84, 9300165), (90, 8680154), (92, 8491455), (98, 7971570), (105, 7440132), (115, 6793164), (126, 6200110), (138, 5660970), (140, 5580099), (147, 5314380), (161, 4852260), (180, 4340077), (196, 3985785), (207, 3773980), (210, 3720066), (230, 3396582), (245, 3188628), (252, 3100055), (276, 2830485), (294, 2657190), (315, 2480044), (322, 2426130), (345, 2264388), (414, 1886990), (420, 1860033), (441, 1771460), (460, 1698291), (483, 1617420), (490, 1594314), (588, 1328595), (630, 1240022), (644, 1213065), (690, 1132194), (735, 1062876), (805, 970452), (828, 943495), (882, 885730), (966, 808710), (980, 797157), (1035, 754796), (1127, 693180), (1260, 620011), (1380, 566097), (1449, 539140), (1470, 531438), (1610, 485226), (1764, 442865), (1932, 404355), (2070, 377398), (2205, 354292), (2254, 346590), (2415, 323484), (2898, 269570), (2940, 265719), (3220, 242613), (3381, 231060), (3851, 202860), (4140, 188699), (4410, 177146), (4508, 173295), (4830, 161742), (5635, 138636), (5796, 134785), (6762, 115530), (7245, 107828), (7702, 101430), (8820, 88573), (9660, 80871), (10143, 77020), (11270, 69318), (11553, 67620), (13524, 57765), (14490, 53914), (15404, 50715), (16905, 46212), (19255, 40572), (20286, 38510), (22540, 34659), (23106, 33810), (26957, 28980)]