221584860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:170

約数の個数: 288

約数和(自身を含む): 813321600

約数和(自身を除く): 591736740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 49, 60, 63, 70, 74, 84, 90, 97, 98, 105, 111, 126, 140, 147, 148, 180, 185, 194, 196, 210, 222, 245, 252, 259, 291, 294, 315, 333, 343, 370, 388, 420, 441, 444, 485, 490, 518, 555, 582, 588, 630, 666, 679, 686, 735, 740, 777, 873, 882, 970, 980, 1029, 1036, 1110, 1164, 1260, 1295, 1332, 1358, 1372, 1455, 1470, 1554, 1665, 1715, 1746, 1764, 1813, 1940, 2037, 2058, 2205, 2220, 2331, 2590, 2716, 2910, 2940, 3087, 3108, 3330, 3395, 3430, 3492, 3589, 3626, 3885, 4074, 4116, 4365, 4410, 4662, 4753, 5145, 5180, 5439, 5820, 6111, 6174, 6660, 6790, 6860, 7178, 7252, 7770, 8148, 8730, 8820, 9065, 9324, 9506, 10185, 10290, 10767, 10878, 11655, 12222, 12348, 12691, 13580, 14259, 14356, 15435, 15540, 16317, 17460, 17945, 18130, 19012, 20370, 20580, 21534, 21756, 23310, 23765, 24444, 25123, 25382, 27195, 28518, 30555, 30870, 32301, 32634, 33271, 35890, 36260, 38073, 40740, 42777, 43068, 46620, 47530, 50246, 50764, 53835, 54390, 57036, 61110, 61740, 63455, 64602, 65268, 66542, 71295, 71780, 75369, 76146, 81585, 85554, 95060, 99813, 100492, 107670, 108780, 114219, 122220, 125615, 126910, 129204, 133084, 142590, 150738, 152292, 161505, 163170, 166355, 171108, 175861, 190365, 199626, 213885, 215340, 226107, 228438, 251230, 253820, 285180, 299439, 301476, 323010, 326340, 332710, 351722, 376845, 380730, 399252, 427770, 452214, 456876, 499065, 502460, 527583, 571095, 598878, 646020, 665420, 703444, 753690, 761460, 855540, 879305, 904428, 998130, 1055166, 1130535, 1142190, 1197756, 1231027, 1497195, 1507380, 1582749, 1758610, 1996260, 2110332, 2261070, 2284380, 2462054, 2637915, 2994390, 3165498, 3517220, 3693081, 4522140, 4924108, 5275830, 5988780, 6155135, 6330996, 7386162, 7913745, 10551660, 11079243, 12310270, 14772324, 15827490, 18465405, 22158486, 24620540, 31654980, 36930810, 44316972, 55396215, 73861620, 110792430, 221584860]

約数ペア:

[(1, 221584860), (2, 110792430), (3, 73861620), (4, 55396215), (5, 44316972), (6, 36930810), (7, 31654980), (9, 24620540), (10, 22158486), (12, 18465405), (14, 15827490), (15, 14772324), (18, 12310270), (20, 11079243), (21, 10551660), (28, 7913745), (30, 7386162), (35, 6330996), (36, 6155135), (37, 5988780), (42, 5275830), (45, 4924108), (49, 4522140), (60, 3693081), (63, 3517220), (70, 3165498), (74, 2994390), (84, 2637915), (90, 2462054), (97, 2284380), (98, 2261070), (105, 2110332), (111, 1996260), (126, 1758610), (140, 1582749), (147, 1507380), (148, 1497195), (180, 1231027), (185, 1197756), (194, 1142190), (196, 1130535), (210, 1055166), (222, 998130), (245, 904428), (252, 879305), (259, 855540), (291, 761460), (294, 753690), (315, 703444), (333, 665420), (343, 646020), (370, 598878), (388, 571095), (420, 527583), (441, 502460), (444, 499065), (485, 456876), (490, 452214), (518, 427770), (555, 399252), (582, 380730), (588, 376845), (630, 351722), (666, 332710), (679, 326340), (686, 323010), (735, 301476), (740, 299439), (777, 285180), (873, 253820), (882, 251230), (970, 228438), (980, 226107), (1029, 215340), (1036, 213885), (1110, 199626), (1164, 190365), (1260, 175861), (1295, 171108), (1332, 166355), (1358, 163170), (1372, 161505), (1455, 152292), (1470, 150738), (1554, 142590), (1665, 133084), (1715, 129204), (1746, 126910), (1764, 125615), (1813, 122220), (1940, 114219), (2037, 108780), (2058, 107670), (2205, 100492), (2220, 99813), (2331, 95060), (2590, 85554), (2716, 81585), (2910, 76146), (2940, 75369), (3087, 71780), (3108, 71295), (3330, 66542), (3395, 65268), (3430, 64602), (3492, 63455), (3589, 61740), (3626, 61110), (3885, 57036), (4074, 54390), (4116, 53835), (4365, 50764), (4410, 50246), (4662, 47530), (4753, 46620), (5145, 43068), (5180, 42777), (5439, 40740), (5820, 38073), (6111, 36260), (6174, 35890), (6660, 33271), (6790, 32634), (6860, 32301), (7178, 30870), (7252, 30555), (7770, 28518), (8148, 27195), (8730, 25382), (8820, 25123), (9065, 24444), (9324, 23765), (9506, 23310), (10185, 21756), (10290, 21534), (10767, 20580), (10878, 20370), (11655, 19012), (12222, 18130), (12348, 17945), (12691, 17460), (13580, 16317), (14259, 15540), (14356, 15435)]