221821740

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:690

約数の個数: 240

約数和(自身を含む): 822226944

約数和(自身を除く): 600405204

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, 54, 60, 62, 63, 70, 81, 84, 90, 93, 105, 108, 124, 126, 135, 140, 155, 162, 180, 186, 189, 210, 217, 252, 270, 279, 310, 315, 324, 372, 378, 405, 420, 434, 465, 540, 558, 567, 620, 630, 631, 651, 756, 810, 837, 868, 930, 945, 1085, 1116, 1134, 1260, 1262, 1302, 1395, 1620, 1674, 1860, 1890, 1893, 1953, 2170, 2268, 2511, 2524, 2604, 2790, 2835, 3155, 3255, 3348, 3780, 3786, 3906, 4185, 4340, 4417, 5022, 5580, 5670, 5679, 5859, 6310, 6510, 7572, 7812, 8370, 8834, 9465, 9765, 10044, 11340, 11358, 11718, 12555, 12620, 13020, 13251, 16740, 17037, 17577, 17668, 18930, 19530, 19561, 22085, 22716, 23436, 25110, 26502, 28395, 29295, 34074, 35154, 37860, 39060, 39122, 39753, 44170, 50220, 51111, 53004, 56790, 58590, 58683, 66255, 68148, 70308, 78244, 79506, 85185, 87885, 88340, 97805, 102222, 113580, 117180, 117366, 119259, 132510, 136927, 159012, 170370, 175770, 176049, 195610, 198765, 204444, 234732, 238518, 255555, 265020, 273854, 293415, 340740, 351540, 352098, 357777, 391220, 397530, 410781, 477036, 511110, 528147, 547708, 586830, 596295, 684635, 704196, 715554, 795060, 821562, 880245, 1022220, 1056294, 1173660, 1192590, 1232343, 1369270, 1431108, 1584441, 1643124, 1760490, 1788885, 2053905, 2112588, 2385180, 2464686, 2640735, 2738540, 3168882, 3520980, 3577770, 3697029, 4107810, 4929372, 5281470, 6161715, 6337764, 7155540, 7394058, 7922205, 8215620, 10562940, 11091087, 12323430, 14788116, 15844410, 18485145, 22182174, 24646860, 31688820, 36970290, 44364348, 55455435, 73940580, 110910870, 221821740]

約数ペア:

[(1, 221821740), (2, 110910870), (3, 73940580), (4, 55455435), (5, 44364348), (6, 36970290), (7, 31688820), (9, 24646860), (10, 22182174), (12, 18485145), (14, 15844410), (15, 14788116), (18, 12323430), (20, 11091087), (21, 10562940), (27, 8215620), (28, 7922205), (30, 7394058), (31, 7155540), (35, 6337764), (36, 6161715), (42, 5281470), (45, 4929372), (54, 4107810), (60, 3697029), (62, 3577770), (63, 3520980), (70, 3168882), (81, 2738540), (84, 2640735), (90, 2464686), (93, 2385180), (105, 2112588), (108, 2053905), (124, 1788885), (126, 1760490), (135, 1643124), (140, 1584441), (155, 1431108), (162, 1369270), (180, 1232343), (186, 1192590), (189, 1173660), (210, 1056294), (217, 1022220), (252, 880245), (270, 821562), (279, 795060), (310, 715554), (315, 704196), (324, 684635), (372, 596295), (378, 586830), (405, 547708), (420, 528147), (434, 511110), (465, 477036), (540, 410781), (558, 397530), (567, 391220), (620, 357777), (630, 352098), (631, 351540), (651, 340740), (756, 293415), (810, 273854), (837, 265020), (868, 255555), (930, 238518), (945, 234732), (1085, 204444), (1116, 198765), (1134, 195610), (1260, 176049), (1262, 175770), (1302, 170370), (1395, 159012), (1620, 136927), (1674, 132510), (1860, 119259), (1890, 117366), (1893, 117180), (1953, 113580), (2170, 102222), (2268, 97805), (2511, 88340), (2524, 87885), (2604, 85185), (2790, 79506), (2835, 78244), (3155, 70308), (3255, 68148), (3348, 66255), (3780, 58683), (3786, 58590), (3906, 56790), (4185, 53004), (4340, 51111), (4417, 50220), (5022, 44170), (5580, 39753), (5670, 39122), (5679, 39060), (5859, 37860), (6310, 35154), (6510, 34074), (7572, 29295), (7812, 28395), (8370, 26502), (8834, 25110), (9465, 23436), (9765, 22716), (10044, 22085), (11340, 19561), (11358, 19530), (11718, 18930), (12555, 17668), (12620, 17577), (13020, 17037), (13251, 16740)]