208302640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:148

約数の個数: 240

約数和(自身を含む): 627388416

約数和(自身を除く): 419085776

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 71, 80, 91, 104, 112, 124, 130, 140, 142, 155, 169, 182, 208, 217, 248, 260, 280, 284, 310, 338, 355, 364, 403, 434, 455, 496, 497, 520, 560, 568, 620, 676, 710, 728, 806, 845, 868, 910, 923, 994, 1040, 1085, 1136, 1183, 1240, 1352, 1420, 1456, 1612, 1690, 1736, 1820, 1846, 1988, 2015, 2170, 2201, 2366, 2480, 2485, 2704, 2821, 2840, 3224, 3380, 3472, 3640, 3692, 3976, 4030, 4340, 4402, 4615, 4732, 4970, 5239, 5642, 5680, 5915, 6448, 6461, 6760, 7280, 7384, 7952, 8060, 8680, 8804, 9230, 9464, 9940, 10478, 11005, 11284, 11830, 11999, 12922, 13520, 14105, 14768, 15407, 16120, 17360, 17608, 18460, 18928, 19880, 20956, 22010, 22568, 23660, 23998, 25844, 26195, 28210, 28613, 30814, 32240, 32305, 35216, 36673, 36920, 39760, 41912, 44020, 45136, 47320, 47996, 51688, 52390, 56420, 57226, 59995, 61628, 64610, 73346, 73840, 77035, 83824, 83993, 88040, 94640, 95992, 103376, 104780, 112840, 114452, 119990, 123256, 129220, 143065, 146692, 154070, 167986, 176080, 183365, 191984, 200291, 209560, 225680, 228904, 239980, 246512, 258440, 286130, 293384, 308140, 335972, 366730, 371969, 400582, 419120, 419965, 457808, 479960, 516880, 572260, 586768, 616280, 671944, 733460, 743938, 801164, 839930, 959920, 1001455, 1144520, 1232560, 1343888, 1466920, 1487876, 1602328, 1679860, 1859845, 2002910, 2289040, 2603783, 2933840, 2975752, 3204656, 3359720, 3719690, 4005820, 5207566, 5951504, 6719440, 7439380, 8011640, 10415132, 13018915, 14878760, 16023280, 20830264, 26037830, 29757520, 41660528, 52075660, 104151320, 208302640]

約数ペア:

[(1, 208302640), (2, 104151320), (4, 52075660), (5, 41660528), (7, 29757520), (8, 26037830), (10, 20830264), (13, 16023280), (14, 14878760), (16, 13018915), (20, 10415132), (26, 8011640), (28, 7439380), (31, 6719440), (35, 5951504), (40, 5207566), (52, 4005820), (56, 3719690), (62, 3359720), (65, 3204656), (70, 2975752), (71, 2933840), (80, 2603783), (91, 2289040), (104, 2002910), (112, 1859845), (124, 1679860), (130, 1602328), (140, 1487876), (142, 1466920), (155, 1343888), (169, 1232560), (182, 1144520), (208, 1001455), (217, 959920), (248, 839930), (260, 801164), (280, 743938), (284, 733460), (310, 671944), (338, 616280), (355, 586768), (364, 572260), (403, 516880), (434, 479960), (455, 457808), (496, 419965), (497, 419120), (520, 400582), (560, 371969), (568, 366730), (620, 335972), (676, 308140), (710, 293384), (728, 286130), (806, 258440), (845, 246512), (868, 239980), (910, 228904), (923, 225680), (994, 209560), (1040, 200291), (1085, 191984), (1136, 183365), (1183, 176080), (1240, 167986), (1352, 154070), (1420, 146692), (1456, 143065), (1612, 129220), (1690, 123256), (1736, 119990), (1820, 114452), (1846, 112840), (1988, 104780), (2015, 103376), (2170, 95992), (2201, 94640), (2366, 88040), (2480, 83993), (2485, 83824), (2704, 77035), (2821, 73840), (2840, 73346), (3224, 64610), (3380, 61628), (3472, 59995), (3640, 57226), (3692, 56420), (3976, 52390), (4030, 51688), (4340, 47996), (4402, 47320), (4615, 45136), (4732, 44020), (4970, 41912), (5239, 39760), (5642, 36920), (5680, 36673), (5915, 35216), (6448, 32305), (6461, 32240), (6760, 30814), (7280, 28613), (7384, 28210), (7952, 26195), (8060, 25844), (8680, 23998), (8804, 23660), (9230, 22568), (9464, 22010), (9940, 20956), (10478, 19880), (11005, 18928), (11284, 18460), (11830, 17608), (11999, 17360), (12922, 16120), (13520, 15407), (14105, 14768)]