51721320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{919}}^1$

素因数の和:1007

約数の個数: 128

約数和(自身を含む): 180172800

約数和(自身を除く): 128451480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 67, 70, 84, 105, 120, 134, 140, 168, 201, 210, 268, 280, 335, 402, 420, 469, 536, 670, 804, 840, 919, 938, 1005, 1340, 1407, 1608, 1838, 1876, 2010, 2345, 2680, 2757, 2814, 3676, 3752, 4020, 4595, 4690, 5514, 5628, 6433, 7035, 7352, 8040, 9190, 9380, 11028, 11256, 12866, 13785, 14070, 18380, 18760, 19299, 22056, 25732, 27570, 28140, 32165, 36760, 38598, 51464, 55140, 56280, 61573, 64330, 77196, 96495, 110280, 123146, 128660, 154392, 184719, 192990, 246292, 257320, 307865, 369438, 385980, 431011, 492584, 615730, 738876, 771960, 862022, 923595, 1231460, 1293033, 1477752, 1724044, 1847190, 2155055, 2462920, 2586066, 3448088, 3694380, 4310110, 5172132, 6465165, 7388760, 8620220, 10344264, 12930330, 17240440, 25860660, 51721320]

約数ペア:

[(1, 51721320), (2, 25860660), (3, 17240440), (4, 12930330), (5, 10344264), (6, 8620220), (7, 7388760), (8, 6465165), (10, 5172132), (12, 4310110), (14, 3694380), (15, 3448088), (20, 2586066), (21, 2462920), (24, 2155055), (28, 1847190), (30, 1724044), (35, 1477752), (40, 1293033), (42, 1231460), (56, 923595), (60, 862022), (67, 771960), (70, 738876), (84, 615730), (105, 492584), (120, 431011), (134, 385980), (140, 369438), (168, 307865), (201, 257320), (210, 246292), (268, 192990), (280, 184719), (335, 154392), (402, 128660), (420, 123146), (469, 110280), (536, 96495), (670, 77196), (804, 64330), (840, 61573), (919, 56280), (938, 55140), (1005, 51464), (1340, 38598), (1407, 36760), (1608, 32165), (1838, 28140), (1876, 27570), (2010, 25732), (2345, 22056), (2680, 19299), (2757, 18760), (2814, 18380), (3676, 14070), (3752, 13785), (4020, 12866), (4595, 11256), (4690, 11028), (5514, 9380), (5628, 9190), (6433, 8040), (7035, 7352)]