261961840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3931}}^1$

素因数の和:3975

約数の個数: 120

約数和(自身を含む): 750367152

約数和(自身を除く): 488405312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 196, 238, 245, 272, 280, 340, 392, 476, 490, 560, 595, 680, 784, 833, 952, 980, 1190, 1360, 1666, 1904, 1960, 2380, 3332, 3920, 3931, 4165, 4760, 6664, 7862, 8330, 9520, 13328, 15724, 16660, 19655, 27517, 31448, 33320, 39310, 55034, 62896, 66640, 66827, 78620, 110068, 133654, 137585, 157240, 192619, 220136, 267308, 275170, 314480, 334135, 385238, 440272, 467789, 534616, 550340, 668270, 770476, 935578, 963095, 1069232, 1100680, 1336540, 1540952, 1871156, 1926190, 2201360, 2338945, 2673080, 3081904, 3274523, 3742312, 3852380, 4677890, 5346160, 6549046, 7484624, 7704760, 9355780, 13098092, 15409520, 16372615, 18711560, 26196184, 32745230, 37423120, 52392368, 65490460, 130980920, 261961840]

約数ペア:

[(1, 261961840), (2, 130980920), (4, 65490460), (5, 52392368), (7, 37423120), (8, 32745230), (10, 26196184), (14, 18711560), (16, 16372615), (17, 15409520), (20, 13098092), (28, 9355780), (34, 7704760), (35, 7484624), (40, 6549046), (49, 5346160), (56, 4677890), (68, 3852380), (70, 3742312), (80, 3274523), (85, 3081904), (98, 2673080), (112, 2338945), (119, 2201360), (136, 1926190), (140, 1871156), (170, 1540952), (196, 1336540), (238, 1100680), (245, 1069232), (272, 963095), (280, 935578), (340, 770476), (392, 668270), (476, 550340), (490, 534616), (560, 467789), (595, 440272), (680, 385238), (784, 334135), (833, 314480), (952, 275170), (980, 267308), (1190, 220136), (1360, 192619), (1666, 157240), (1904, 137585), (1960, 133654), (2380, 110068), (3332, 78620), (3920, 66827), (3931, 66640), (4165, 62896), (4760, 55034), (6664, 39310), (7862, 33320), (8330, 31448), (9520, 27517), (13328, 19655), (15724, 16660)]