21499988480

素因数分解:

$2^9\times 5^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{751}}^1$

素因数の和:1038

約数の個数: 160

約数和(自身を含む): 52841403648

約数和(自身を除く): 31341415168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 211, 212, 256, 265, 320, 422, 424, 512, 530, 640, 751, 844, 848, 1055, 1060, 1280, 1502, 1688, 1696, 2110, 2120, 2560, 3004, 3376, 3392, 3755, 4220, 4240, 6008, 6752, 6784, 7510, 8440, 8480, 11183, 12016, 13504, 13568, 15020, 16880, 16960, 22366, 24032, 27008, 27136, 30040, 33760, 33920, 39803, 44732, 48064, 54016, 55915, 60080, 67520, 67840, 79606, 89464, 96128, 108032, 111830, 120160, 135040, 135680, 158461, 159212, 178928, 192256, 199015, 223660, 240320, 270080, 316922, 318424, 357856, 384512, 398030, 447320, 480640, 540160, 633844, 636848, 715712, 792305, 796060, 894640, 961280, 1267688, 1273696, 1431424, 1584610, 1592120, 1789280, 1922560, 2535376, 2547392, 2862848, 3169220, 3184240, 3578560, 5070752, 5094784, 5725696, 6338440, 6368480, 7157120, 8398433, 10141504, 10189568, 12676880, 12736960, 14314240, 16796866, 20283008, 20379136, 25353760, 25473920, 28628480, 33593732, 40566016, 41992165, 50707520, 50947840, 67187464, 81132032, 83984330, 101415040, 101895680, 134374928, 167968660, 202830080, 268749856, 335937320, 405660160, 537499712, 671874640, 1074999424, 1343749280, 2149998848, 2687498560, 4299997696, 5374997120, 10749994240, 21499988480]

約数ペア:

[(1, 21499988480), (2, 10749994240), (4, 5374997120), (5, 4299997696), (8, 2687498560), (10, 2149998848), (16, 1343749280), (20, 1074999424), (32, 671874640), (40, 537499712), (53, 405660160), (64, 335937320), (80, 268749856), (106, 202830080), (128, 167968660), (160, 134374928), (211, 101895680), (212, 101415040), (256, 83984330), (265, 81132032), (320, 67187464), (422, 50947840), (424, 50707520), (512, 41992165), (530, 40566016), (640, 33593732), (751, 28628480), (844, 25473920), (848, 25353760), (1055, 20379136), (1060, 20283008), (1280, 16796866), (1502, 14314240), (1688, 12736960), (1696, 12676880), (2110, 10189568), (2120, 10141504), (2560, 8398433), (3004, 7157120), (3376, 6368480), (3392, 6338440), (3755, 5725696), (4220, 5094784), (4240, 5070752), (6008, 3578560), (6752, 3184240), (6784, 3169220), (7510, 2862848), (8440, 2547392), (8480, 2535376), (11183, 1922560), (12016, 1789280), (13504, 1592120), (13568, 1584610), (15020, 1431424), (16880, 1273696), (16960, 1267688), (22366, 961280), (24032, 894640), (27008, 796060), (27136, 792305), (30040, 715712), (33760, 636848), (33920, 633844), (39803, 540160), (44732, 480640), (48064, 447320), (54016, 398030), (55915, 384512), (60080, 357856), (67520, 318424), (67840, 316922), (79606, 270080), (89464, 240320), (96128, 223660), (108032, 199015), (111830, 192256), (120160, 178928), (135040, 159212), (135680, 158461)]