261211860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:503

約数の個数: 288

約数和(自身を含む): 1003871232

約数和(自身を除く): 742659372

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 37, 39, 42, 45, 52, 60, 63, 65, 70, 74, 78, 84, 90, 91, 105, 111, 117, 126, 130, 140, 148, 156, 180, 182, 185, 195, 210, 222, 234, 252, 259, 260, 273, 315, 333, 364, 370, 390, 420, 431, 444, 455, 468, 481, 518, 546, 555, 585, 630, 666, 740, 777, 780, 819, 862, 910, 962, 1036, 1092, 1110, 1170, 1260, 1293, 1295, 1332, 1365, 1443, 1554, 1638, 1665, 1724, 1820, 1924, 2155, 2220, 2331, 2340, 2405, 2586, 2590, 2730, 2886, 3017, 3108, 3276, 3330, 3367, 3879, 3885, 4095, 4310, 4329, 4662, 4810, 5172, 5180, 5460, 5603, 5772, 6034, 6465, 6660, 6734, 7215, 7758, 7770, 8190, 8620, 8658, 9051, 9324, 9620, 10101, 11206, 11655, 12068, 12930, 13468, 14430, 15085, 15516, 15540, 15947, 16380, 16809, 16835, 17316, 18102, 19395, 20202, 21645, 22412, 23310, 25860, 27153, 28015, 28860, 30170, 30303, 31894, 33618, 33670, 36204, 38790, 39221, 40404, 43290, 45255, 46620, 47841, 50427, 50505, 54306, 56030, 60340, 60606, 63788, 67236, 67340, 77580, 78442, 79735, 84045, 86580, 90510, 95682, 100854, 101010, 108612, 111629, 112060, 117663, 121212, 135765, 143523, 151515, 156884, 159470, 168090, 181020, 191364, 196105, 201708, 202020, 207311, 223258, 235326, 239205, 252135, 271530, 287046, 303030, 318940, 334887, 336180, 352989, 392210, 414622, 446516, 470652, 478410, 504270, 543060, 558145, 574092, 588315, 606060, 621933, 669774, 705978, 717615, 784420, 829244, 956820, 1004661, 1008540, 1036555, 1116290, 1176630, 1243866, 1339548, 1411956, 1435230, 1451177, 1674435, 1764945, 1865799, 2009322, 2073110, 2232580, 2353260, 2487732, 2870460, 2902354, 3109665, 3348870, 3529890, 3731598, 4018644, 4146220, 4353531, 5023305, 5804708, 6219330, 6697740, 7059780, 7255885, 7463196, 8707062, 9328995, 10046610, 12438660, 13060593, 14511770, 17414124, 18657990, 20093220, 21767655, 26121186, 29023540, 37315980, 43535310, 52242372, 65302965, 87070620, 130605930, 261211860]

約数ペア:

[(1, 261211860), (2, 130605930), (3, 87070620), (4, 65302965), (5, 52242372), (6, 43535310), (7, 37315980), (9, 29023540), (10, 26121186), (12, 21767655), (13, 20093220), (14, 18657990), (15, 17414124), (18, 14511770), (20, 13060593), (21, 12438660), (26, 10046610), (28, 9328995), (30, 8707062), (35, 7463196), (36, 7255885), (37, 7059780), (39, 6697740), (42, 6219330), (45, 5804708), (52, 5023305), (60, 4353531), (63, 4146220), (65, 4018644), (70, 3731598), (74, 3529890), (78, 3348870), (84, 3109665), (90, 2902354), (91, 2870460), (105, 2487732), (111, 2353260), (117, 2232580), (126, 2073110), (130, 2009322), (140, 1865799), (148, 1764945), (156, 1674435), (180, 1451177), (182, 1435230), (185, 1411956), (195, 1339548), (210, 1243866), (222, 1176630), (234, 1116290), (252, 1036555), (259, 1008540), (260, 1004661), (273, 956820), (315, 829244), (333, 784420), (364, 717615), (370, 705978), (390, 669774), (420, 621933), (431, 606060), (444, 588315), (455, 574092), (468, 558145), (481, 543060), (518, 504270), (546, 478410), (555, 470652), (585, 446516), (630, 414622), (666, 392210), (740, 352989), (777, 336180), (780, 334887), (819, 318940), (862, 303030), (910, 287046), (962, 271530), (1036, 252135), (1092, 239205), (1110, 235326), (1170, 223258), (1260, 207311), (1293, 202020), (1295, 201708), (1332, 196105), (1365, 191364), (1443, 181020), (1554, 168090), (1638, 159470), (1665, 156884), (1724, 151515), (1820, 143523), (1924, 135765), (2155, 121212), (2220, 117663), (2331, 112060), (2340, 111629), (2405, 108612), (2586, 101010), (2590, 100854), (2730, 95682), (2886, 90510), (3017, 86580), (3108, 84045), (3276, 79735), (3330, 78442), (3367, 77580), (3879, 67340), (3885, 67236), (4095, 63788), (4310, 60606), (4329, 60340), (4662, 56030), (4810, 54306), (5172, 50505), (5180, 50427), (5460, 47841), (5603, 46620), (5772, 45255), (6034, 43290), (6465, 40404), (6660, 39221), (6734, 38790), (7215, 36204), (7758, 33670), (7770, 33618), (8190, 31894), (8620, 30303), (8658, 30170), (9051, 28860), (9324, 28015), (9620, 27153), (10101, 25860), (11206, 23310), (11655, 22412), (12068, 21645), (12930, 20202), (13468, 19395), (14430, 18102), (15085, 17316), (15516, 16835), (15540, 16809), (15947, 16380)]