261210180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:275

約数の個数: 288

約数和(自身を含む): 955608192

約数和(自身を除く): 694398012

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 41, 42, 44, 49, 55, 60, 66, 70, 77, 82, 84, 98, 105, 110, 123, 132, 140, 147, 154, 164, 165, 196, 197, 205, 210, 220, 231, 245, 246, 287, 294, 308, 330, 385, 394, 410, 420, 451, 462, 490, 492, 539, 574, 588, 591, 615, 660, 735, 770, 788, 820, 861, 902, 924, 980, 985, 1078, 1148, 1155, 1182, 1230, 1353, 1379, 1435, 1470, 1540, 1617, 1722, 1804, 1970, 2009, 2156, 2167, 2255, 2310, 2364, 2460, 2695, 2706, 2758, 2870, 2940, 2955, 3157, 3234, 3444, 3940, 4018, 4137, 4305, 4334, 4510, 4620, 5390, 5412, 5516, 5740, 5910, 6027, 6314, 6468, 6501, 6765, 6895, 8036, 8077, 8085, 8274, 8610, 8668, 9020, 9471, 9653, 10045, 10780, 10835, 11820, 12054, 12628, 13002, 13530, 13790, 15169, 15785, 16154, 16170, 16548, 17220, 18942, 19306, 20090, 20685, 21670, 22099, 24108, 24231, 26004, 27060, 27580, 28959, 30135, 30338, 31570, 32308, 32340, 32505, 37884, 38612, 40180, 40385, 41370, 43340, 44198, 45507, 47355, 48265, 48462, 56539, 57918, 60270, 60676, 63140, 65010, 66297, 75845, 80770, 82740, 88396, 88847, 91014, 94710, 96530, 96924, 106183, 110495, 113078, 115836, 120540, 121155, 130020, 132594, 144795, 151690, 161540, 169617, 177694, 182028, 189420, 193060, 212366, 220990, 226156, 227535, 242310, 265188, 266541, 282695, 289590, 303380, 318549, 331485, 339234, 355388, 395773, 424732, 441980, 444235, 455070, 484620, 530915, 533082, 565390, 579180, 621929, 637098, 662970, 678468, 791546, 848085, 888470, 910140, 1061830, 1066164, 1130780, 1187319, 1243858, 1274196, 1325940, 1332705, 1583092, 1592745, 1696170, 1776940, 1865787, 1978865, 2123660, 2374638, 2487716, 2665410, 3109645, 3185490, 3392340, 3731574, 3957730, 4353503, 4749276, 5330820, 5936595, 6219290, 6370980, 7463148, 7915460, 8707006, 9328935, 11873190, 12438580, 13060509, 17414012, 18657870, 21767515, 23746380, 26121018, 37315740, 43535030, 52242036, 65302545, 87070060, 130605090, 261210180]

約数ペア:

[(1, 261210180), (2, 130605090), (3, 87070060), (4, 65302545), (5, 52242036), (6, 43535030), (7, 37315740), (10, 26121018), (11, 23746380), (12, 21767515), (14, 18657870), (15, 17414012), (20, 13060509), (21, 12438580), (22, 11873190), (28, 9328935), (30, 8707006), (33, 7915460), (35, 7463148), (41, 6370980), (42, 6219290), (44, 5936595), (49, 5330820), (55, 4749276), (60, 4353503), (66, 3957730), (70, 3731574), (77, 3392340), (82, 3185490), (84, 3109645), (98, 2665410), (105, 2487716), (110, 2374638), (123, 2123660), (132, 1978865), (140, 1865787), (147, 1776940), (154, 1696170), (164, 1592745), (165, 1583092), (196, 1332705), (197, 1325940), (205, 1274196), (210, 1243858), (220, 1187319), (231, 1130780), (245, 1066164), (246, 1061830), (287, 910140), (294, 888470), (308, 848085), (330, 791546), (385, 678468), (394, 662970), (410, 637098), (420, 621929), (451, 579180), (462, 565390), (490, 533082), (492, 530915), (539, 484620), (574, 455070), (588, 444235), (591, 441980), (615, 424732), (660, 395773), (735, 355388), (770, 339234), (788, 331485), (820, 318549), (861, 303380), (902, 289590), (924, 282695), (980, 266541), (985, 265188), (1078, 242310), (1148, 227535), (1155, 226156), (1182, 220990), (1230, 212366), (1353, 193060), (1379, 189420), (1435, 182028), (1470, 177694), (1540, 169617), (1617, 161540), (1722, 151690), (1804, 144795), (1970, 132594), (2009, 130020), (2156, 121155), (2167, 120540), (2255, 115836), (2310, 113078), (2364, 110495), (2460, 106183), (2695, 96924), (2706, 96530), (2758, 94710), (2870, 91014), (2940, 88847), (2955, 88396), (3157, 82740), (3234, 80770), (3444, 75845), (3940, 66297), (4018, 65010), (4137, 63140), (4305, 60676), (4334, 60270), (4510, 57918), (4620, 56539), (5390, 48462), (5412, 48265), (5516, 47355), (5740, 45507), (5910, 44198), (6027, 43340), (6314, 41370), (6468, 40385), (6501, 40180), (6765, 38612), (6895, 37884), (8036, 32505), (8077, 32340), (8085, 32308), (8274, 31570), (8610, 30338), (8668, 30135), (9020, 28959), (9471, 27580), (9653, 27060), (10045, 26004), (10780, 24231), (10835, 24108), (11820, 22099), (12054, 21670), (12628, 20685), (13002, 20090), (13530, 19306), (13790, 18942), (15169, 17220), (15785, 16548), (16154, 16170)]