987716480

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{787}}^1$

素因数の和:896

約数の個数: 128

約数和(自身を含む): 2473973280

約数和(自身を除く): 1486256800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 53, 64, 74, 80, 106, 128, 148, 160, 185, 212, 265, 296, 320, 370, 424, 530, 592, 640, 740, 787, 848, 1060, 1184, 1480, 1574, 1696, 1961, 2120, 2368, 2960, 3148, 3392, 3922, 3935, 4240, 4736, 5920, 6296, 6784, 7844, 7870, 8480, 9805, 11840, 12592, 15688, 15740, 16960, 19610, 23680, 25184, 29119, 31376, 31480, 33920, 39220, 41711, 50368, 58238, 62752, 62960, 78440, 83422, 100736, 116476, 125504, 125920, 145595, 156880, 166844, 208555, 232952, 251008, 251840, 291190, 313760, 333688, 417110, 465904, 503680, 582380, 627520, 667376, 834220, 931808, 1164760, 1255040, 1334752, 1543307, 1668440, 1863616, 2329520, 2669504, 3086614, 3336880, 3727232, 4659040, 5339008, 6173228, 6673760, 7716535, 9318080, 12346456, 13347520, 15433070, 18636160, 24692912, 26695040, 30866140, 49385824, 61732280, 98771648, 123464560, 197543296, 246929120, 493858240, 987716480]

約数ペア:

[(1, 987716480), (2, 493858240), (4, 246929120), (5, 197543296), (8, 123464560), (10, 98771648), (16, 61732280), (20, 49385824), (32, 30866140), (37, 26695040), (40, 24692912), (53, 18636160), (64, 15433070), (74, 13347520), (80, 12346456), (106, 9318080), (128, 7716535), (148, 6673760), (160, 6173228), (185, 5339008), (212, 4659040), (265, 3727232), (296, 3336880), (320, 3086614), (370, 2669504), (424, 2329520), (530, 1863616), (592, 1668440), (640, 1543307), (740, 1334752), (787, 1255040), (848, 1164760), (1060, 931808), (1184, 834220), (1480, 667376), (1574, 627520), (1696, 582380), (1961, 503680), (2120, 465904), (2368, 417110), (2960, 333688), (3148, 313760), (3392, 291190), (3922, 251840), (3935, 251008), (4240, 232952), (4736, 208555), (5920, 166844), (6296, 156880), (6784, 145595), (7844, 125920), (7870, 125504), (8480, 116476), (9805, 100736), (11840, 83422), (12592, 78440), (15688, 62960), (15740, 62752), (16960, 58238), (19610, 50368), (23680, 41711), (25184, 39220), (29119, 33920), (31376, 31480)]