1997293440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8191}}^1$

素因数の和:8340

約数の個数: 128

約数和(自身を含む): 6417285120

約数和(自身を除く): 4419991680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 127, 128, 160, 192, 240, 254, 320, 381, 384, 480, 508, 635, 640, 762, 960, 1016, 1270, 1524, 1905, 1920, 2032, 2540, 3048, 3810, 4064, 5080, 6096, 7620, 8128, 8191, 10160, 12192, 15240, 16256, 16382, 20320, 24384, 24573, 30480, 32764, 40640, 40955, 48768, 49146, 60960, 65528, 81280, 81910, 98292, 121920, 122865, 131056, 163820, 196584, 243840, 245730, 262112, 327640, 393168, 491460, 524224, 655280, 786336, 982920, 1040257, 1048448, 1310560, 1572672, 1965840, 2080514, 2621120, 3120771, 3145344, 3931680, 4161028, 5201285, 5242240, 6241542, 7863360, 8322056, 10402570, 12483084, 15603855, 15726720, 16644112, 20805140, 24966168, 31207710, 33288224, 41610280, 49932336, 62415420, 66576448, 83220560, 99864672, 124830840, 133152896, 166441120, 199729344, 249661680, 332882240, 399458688, 499323360, 665764480, 998646720, 1997293440]

約数ペア:

[(1, 1997293440), (2, 998646720), (3, 665764480), (4, 499323360), (5, 399458688), (6, 332882240), (8, 249661680), (10, 199729344), (12, 166441120), (15, 133152896), (16, 124830840), (20, 99864672), (24, 83220560), (30, 66576448), (32, 62415420), (40, 49932336), (48, 41610280), (60, 33288224), (64, 31207710), (80, 24966168), (96, 20805140), (120, 16644112), (127, 15726720), (128, 15603855), (160, 12483084), (192, 10402570), (240, 8322056), (254, 7863360), (320, 6241542), (381, 5242240), (384, 5201285), (480, 4161028), (508, 3931680), (635, 3145344), (640, 3120771), (762, 2621120), (960, 2080514), (1016, 1965840), (1270, 1572672), (1524, 1310560), (1905, 1048448), (1920, 1040257), (2032, 982920), (2540, 786336), (3048, 655280), (3810, 524224), (4064, 491460), (5080, 393168), (6096, 327640), (7620, 262112), (8128, 245730), (8191, 243840), (10160, 196584), (12192, 163820), (15240, 131056), (16256, 122865), (16382, 121920), (20320, 98292), (24384, 81910), (24573, 81280), (30480, 65528), (32764, 60960), (40640, 49146), (40955, 48768)]