209836620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:709

約数の個数: 216

約数和(自身を含む): 761617584

約数和(自身を除く): 551780964

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, 98, 105, 111, 126, 140, 147, 148, 180, 185, 196, 210, 222, 245, 252, 259, 294, 315, 333, 370, 420, 441, 444, 490, 518, 555, 588, 630, 643, 666, 735, 740, 777, 882, 980, 1036, 1110, 1260, 1286, 1295, 1332, 1470, 1554, 1665, 1764, 1813, 1929, 2205, 2220, 2331, 2572, 2590, 2940, 3108, 3215, 3330, 3626, 3858, 3885, 4410, 4501, 4662, 5180, 5439, 5787, 6430, 6660, 7252, 7716, 7770, 8820, 9002, 9065, 9324, 9645, 10878, 11574, 11655, 12860, 13503, 15540, 16317, 18004, 18130, 19290, 21756, 22505, 23148, 23310, 23791, 27006, 27195, 28935, 31507, 32634, 36260, 38580, 40509, 45010, 46620, 47582, 54012, 54390, 57870, 63014, 65268, 67515, 71373, 81018, 81585, 90020, 94521, 95164, 108780, 115740, 118955, 126028, 135030, 142746, 157535, 162036, 163170, 166537, 189042, 202545, 214119, 237910, 270060, 283563, 285492, 315070, 326340, 333074, 356865, 378084, 405090, 428238, 472605, 475820, 499611, 567126, 630140, 666148, 713730, 810180, 832685, 856476, 945210, 999222, 1070595, 1134252, 1165759, 1417815, 1427460, 1498833, 1665370, 1890420, 1998444, 2141190, 2331518, 2498055, 2835630, 2997666, 3330740, 3497277, 4282380, 4663036, 4996110, 5671260, 5828795, 5995332, 6994554, 7494165, 9992220, 10491831, 11657590, 13989108, 14988330, 17486385, 20983662, 23315180, 29976660, 34972770, 41967324, 52459155, 69945540, 104918310, 209836620]

約数ペア:

[(1, 209836620), (2, 104918310), (3, 69945540), (4, 52459155), (5, 41967324), (6, 34972770), (7, 29976660), (9, 23315180), (10, 20983662), (12, 17486385), (14, 14988330), (15, 13989108), (18, 11657590), (20, 10491831), (21, 9992220), (28, 7494165), (30, 6994554), (35, 5995332), (36, 5828795), (37, 5671260), (42, 4996110), (45, 4663036), (49, 4282380), (60, 3497277), (63, 3330740), (70, 2997666), (74, 2835630), (84, 2498055), (90, 2331518), (98, 2141190), (105, 1998444), (111, 1890420), (126, 1665370), (140, 1498833), (147, 1427460), (148, 1417815), (180, 1165759), (185, 1134252), (196, 1070595), (210, 999222), (222, 945210), (245, 856476), (252, 832685), (259, 810180), (294, 713730), (315, 666148), (333, 630140), (370, 567126), (420, 499611), (441, 475820), (444, 472605), (490, 428238), (518, 405090), (555, 378084), (588, 356865), (630, 333074), (643, 326340), (666, 315070), (735, 285492), (740, 283563), (777, 270060), (882, 237910), (980, 214119), (1036, 202545), (1110, 189042), (1260, 166537), (1286, 163170), (1295, 162036), (1332, 157535), (1470, 142746), (1554, 135030), (1665, 126028), (1764, 118955), (1813, 115740), (1929, 108780), (2205, 95164), (2220, 94521), (2331, 90020), (2572, 81585), (2590, 81018), (2940, 71373), (3108, 67515), (3215, 65268), (3330, 63014), (3626, 57870), (3858, 54390), (3885, 54012), (4410, 47582), (4501, 46620), (4662, 45010), (5180, 40509), (5439, 38580), (5787, 36260), (6430, 32634), (6660, 31507), (7252, 28935), (7716, 27195), (7770, 27006), (8820, 23791), (9002, 23310), (9065, 23148), (9324, 22505), (9645, 21756), (10878, 19290), (11574, 18130), (11655, 18004), (12860, 16317), (13503, 15540)]