80442880

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{67}}^2$

素因数の和:164

約数の個数: 120

約数和(自身を含む): 223766928

約数和(自身を除く): 143324048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 67, 70, 80, 112, 128, 134, 140, 160, 224, 256, 268, 280, 320, 335, 448, 469, 512, 536, 560, 640, 670, 896, 938, 1072, 1120, 1280, 1340, 1792, 1876, 2144, 2240, 2345, 2560, 2680, 3584, 3752, 4288, 4480, 4489, 4690, 5360, 7504, 8576, 8960, 8978, 9380, 10720, 15008, 17152, 17920, 17956, 18760, 21440, 22445, 30016, 31423, 34304, 35912, 37520, 42880, 44890, 60032, 62846, 71824, 75040, 85760, 89780, 120064, 125692, 143648, 150080, 157115, 171520, 179560, 240128, 251384, 287296, 300160, 314230, 359120, 502768, 574592, 600320, 628460, 718240, 1005536, 1149184, 1200640, 1256920, 1436480, 2011072, 2298368, 2513840, 2872960, 4022144, 5027680, 5745920, 8044288, 10055360, 11491840, 16088576, 20110720, 40221440, 80442880]

約数ペア:

[(1, 80442880), (2, 40221440), (4, 20110720), (5, 16088576), (7, 11491840), (8, 10055360), (10, 8044288), (14, 5745920), (16, 5027680), (20, 4022144), (28, 2872960), (32, 2513840), (35, 2298368), (40, 2011072), (56, 1436480), (64, 1256920), (67, 1200640), (70, 1149184), (80, 1005536), (112, 718240), (128, 628460), (134, 600320), (140, 574592), (160, 502768), (224, 359120), (256, 314230), (268, 300160), (280, 287296), (320, 251384), (335, 240128), (448, 179560), (469, 171520), (512, 157115), (536, 150080), (560, 143648), (640, 125692), (670, 120064), (896, 89780), (938, 85760), (1072, 75040), (1120, 71824), (1280, 62846), (1340, 60032), (1792, 44890), (1876, 42880), (2144, 37520), (2240, 35912), (2345, 34304), (2560, 31423), (2680, 30016), (3584, 22445), (3752, 21440), (4288, 18760), (4480, 17956), (4489, 17920), (4690, 17152), (5360, 15008), (7504, 10720), (8576, 9380), (8960, 8978)]