210806820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 288

約数和(自身を含む): 790594560

約数和(自身を除く): 579787740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 49, 54, 60, 62, 63, 70, 84, 90, 93, 98, 105, 108, 124, 126, 135, 140, 147, 155, 180, 186, 189, 196, 210, 217, 245, 252, 257, 270, 279, 294, 310, 315, 372, 378, 420, 434, 441, 465, 490, 514, 540, 558, 588, 620, 630, 651, 735, 756, 771, 837, 868, 882, 930, 945, 980, 1028, 1085, 1116, 1260, 1285, 1302, 1323, 1395, 1470, 1519, 1542, 1674, 1764, 1799, 1860, 1890, 1953, 2170, 2205, 2313, 2570, 2604, 2646, 2790, 2940, 3038, 3084, 3255, 3348, 3598, 3780, 3855, 3906, 4185, 4340, 4410, 4557, 4626, 5140, 5292, 5397, 5580, 5859, 6076, 6510, 6615, 6939, 7196, 7595, 7710, 7812, 7967, 8370, 8820, 8995, 9114, 9252, 9765, 10794, 11565, 11718, 12593, 13020, 13230, 13671, 13878, 15190, 15420, 15934, 16191, 16740, 17990, 18228, 19530, 21588, 22785, 23130, 23436, 23901, 25186, 26460, 26985, 27342, 27756, 29295, 30380, 31868, 32382, 34695, 35980, 37779, 39060, 39835, 41013, 45570, 46260, 47802, 48573, 50372, 53970, 54684, 55769, 58590, 62965, 64764, 68355, 69390, 71703, 75558, 79670, 80955, 82026, 91140, 95604, 97146, 107940, 111538, 113337, 117180, 119505, 125930, 136710, 138780, 143406, 151116, 159340, 161910, 164052, 167307, 188895, 194292, 205065, 215109, 223076, 226674, 239010, 242865, 251860, 273420, 278845, 286812, 323820, 334614, 340011, 358515, 377790, 390383, 410130, 430218, 453348, 478020, 485730, 501921, 557690, 566685, 669228, 680022, 717030, 755580, 780766, 820260, 836535, 860436, 971460, 1003842, 1075545, 1115380, 1133370, 1171149, 1360044, 1434060, 1505763, 1561532, 1673070, 1700055, 1951915, 2007684, 2151090, 2266740, 2342298, 2509605, 3011526, 3346140, 3400110, 3513447, 3903830, 4302180, 4684596, 5019210, 5855745, 6023052, 6800220, 7026894, 7528815, 7807660, 10038420, 10540341, 11711490, 14053788, 15057630, 17567235, 21080682, 23422980, 30115260, 35134470, 42161364, 52701705, 70268940, 105403410, 210806820]

約数ペア:

[(1, 210806820), (2, 105403410), (3, 70268940), (4, 52701705), (5, 42161364), (6, 35134470), (7, 30115260), (9, 23422980), (10, 21080682), (12, 17567235), (14, 15057630), (15, 14053788), (18, 11711490), (20, 10540341), (21, 10038420), (27, 7807660), (28, 7528815), (30, 7026894), (31, 6800220), (35, 6023052), (36, 5855745), (42, 5019210), (45, 4684596), (49, 4302180), (54, 3903830), (60, 3513447), (62, 3400110), (63, 3346140), (70, 3011526), (84, 2509605), (90, 2342298), (93, 2266740), (98, 2151090), (105, 2007684), (108, 1951915), (124, 1700055), (126, 1673070), (135, 1561532), (140, 1505763), (147, 1434060), (155, 1360044), (180, 1171149), (186, 1133370), (189, 1115380), (196, 1075545), (210, 1003842), (217, 971460), (245, 860436), (252, 836535), (257, 820260), (270, 780766), (279, 755580), (294, 717030), (310, 680022), (315, 669228), (372, 566685), (378, 557690), (420, 501921), (434, 485730), (441, 478020), (465, 453348), (490, 430218), (514, 410130), (540, 390383), (558, 377790), (588, 358515), (620, 340011), (630, 334614), (651, 323820), (735, 286812), (756, 278845), (771, 273420), (837, 251860), (868, 242865), (882, 239010), (930, 226674), (945, 223076), (980, 215109), (1028, 205065), (1085, 194292), (1116, 188895), (1260, 167307), (1285, 164052), (1302, 161910), (1323, 159340), (1395, 151116), (1470, 143406), (1519, 138780), (1542, 136710), (1674, 125930), (1764, 119505), (1799, 117180), (1860, 113337), (1890, 111538), (1953, 107940), (2170, 97146), (2205, 95604), (2313, 91140), (2570, 82026), (2604, 80955), (2646, 79670), (2790, 75558), (2940, 71703), (3038, 69390), (3084, 68355), (3255, 64764), (3348, 62965), (3598, 58590), (3780, 55769), (3855, 54684), (3906, 53970), (4185, 50372), (4340, 48573), (4410, 47802), (4557, 46260), (4626, 45570), (5140, 41013), (5292, 39835), (5397, 39060), (5580, 37779), (5859, 35980), (6076, 34695), (6510, 32382), (6615, 31868), (6939, 30380), (7196, 29295), (7595, 27756), (7710, 27342), (7812, 26985), (7967, 26460), (8370, 25186), (8820, 23901), (8995, 23436), (9114, 23130), (9252, 22785), (9765, 21588), (10794, 19530), (11565, 18228), (11718, 17990), (12593, 16740), (13020, 16191), (13230, 15934), (13671, 15420), (13878, 15190)]