208212120

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:748

約数の個数: 192

約数和(自身を含む): 725437440

約数和(自身を除く): 517225320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 81, 90, 93, 108, 120, 124, 135, 155, 162, 180, 186, 216, 243, 248, 270, 279, 310, 324, 360, 372, 405, 465, 486, 540, 558, 620, 648, 691, 744, 810, 837, 930, 972, 1080, 1116, 1215, 1240, 1382, 1395, 1620, 1674, 1860, 1944, 2073, 2232, 2430, 2511, 2764, 2790, 3240, 3348, 3455, 3720, 4146, 4185, 4860, 5022, 5528, 5580, 6219, 6696, 6910, 7533, 8292, 8370, 9720, 10044, 10365, 11160, 12438, 12555, 13820, 15066, 16584, 16740, 18657, 20088, 20730, 21421, 24876, 25110, 27640, 30132, 31095, 33480, 37314, 37665, 41460, 42842, 49752, 50220, 55971, 60264, 62190, 64263, 74628, 75330, 82920, 85684, 93285, 100440, 107105, 111942, 124380, 128526, 149256, 150660, 167913, 171368, 186570, 192789, 214210, 223884, 248760, 257052, 279855, 301320, 321315, 335826, 373140, 385578, 428420, 447768, 514104, 559710, 578367, 642630, 671652, 746280, 771156, 839565, 856840, 963945, 1119420, 1156734, 1285260, 1343304, 1542312, 1679130, 1735101, 1927890, 2238840, 2313468, 2570520, 2891835, 3358260, 3470202, 3855780, 4626936, 5205303, 5783670, 6716520, 6940404, 7711560, 8675505, 10410606, 11567340, 13880808, 17351010, 20821212, 23134680, 26026515, 34702020, 41642424, 52053030, 69404040, 104106060, 208212120]

約数ペア:

[(1, 208212120), (2, 104106060), (3, 69404040), (4, 52053030), (5, 41642424), (6, 34702020), (8, 26026515), (9, 23134680), (10, 20821212), (12, 17351010), (15, 13880808), (18, 11567340), (20, 10410606), (24, 8675505), (27, 7711560), (30, 6940404), (31, 6716520), (36, 5783670), (40, 5205303), (45, 4626936), (54, 3855780), (60, 3470202), (62, 3358260), (72, 2891835), (81, 2570520), (90, 2313468), (93, 2238840), (108, 1927890), (120, 1735101), (124, 1679130), (135, 1542312), (155, 1343304), (162, 1285260), (180, 1156734), (186, 1119420), (216, 963945), (243, 856840), (248, 839565), (270, 771156), (279, 746280), (310, 671652), (324, 642630), (360, 578367), (372, 559710), (405, 514104), (465, 447768), (486, 428420), (540, 385578), (558, 373140), (620, 335826), (648, 321315), (691, 301320), (744, 279855), (810, 257052), (837, 248760), (930, 223884), (972, 214210), (1080, 192789), (1116, 186570), (1215, 171368), (1240, 167913), (1382, 150660), (1395, 149256), (1620, 128526), (1674, 124380), (1860, 111942), (1944, 107105), (2073, 100440), (2232, 93285), (2430, 85684), (2511, 82920), (2764, 75330), (2790, 74628), (3240, 64263), (3348, 62190), (3455, 60264), (3720, 55971), (4146, 50220), (4185, 49752), (4860, 42842), (5022, 41460), (5528, 37665), (5580, 37314), (6219, 33480), (6696, 31095), (6910, 30132), (7533, 27640), (8292, 25110), (8370, 24876), (9720, 21421), (10044, 20730), (10365, 20088), (11160, 18657), (12438, 16740), (12555, 16584), (13820, 15066)]