31918040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:313

約数の個数: 128

約数和(自身を含む): 91998720

約数和(自身を除く): 60080680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 43, 44, 55, 56, 70, 77, 86, 88, 110, 140, 154, 172, 215, 220, 241, 280, 301, 308, 344, 385, 430, 440, 473, 482, 602, 616, 770, 860, 946, 964, 1204, 1205, 1505, 1540, 1687, 1720, 1892, 1928, 2365, 2408, 2410, 2651, 3010, 3080, 3311, 3374, 3784, 4730, 4820, 5302, 6020, 6622, 6748, 8435, 9460, 9640, 10363, 10604, 12040, 13244, 13255, 13496, 16555, 16870, 18557, 18920, 20726, 21208, 26488, 26510, 33110, 33740, 37114, 41452, 51815, 53020, 66220, 67480, 72541, 74228, 82904, 92785, 103630, 106040, 113993, 132440, 145082, 148456, 185570, 207260, 227986, 290164, 362705, 371140, 414520, 455972, 569965, 580328, 725410, 742280, 797951, 911944, 1139930, 1450820, 1595902, 2279860, 2901640, 3191804, 3989755, 4559720, 6383608, 7979510, 15959020, 31918040]

約数ペア:

[(1, 31918040), (2, 15959020), (4, 7979510), (5, 6383608), (7, 4559720), (8, 3989755), (10, 3191804), (11, 2901640), (14, 2279860), (20, 1595902), (22, 1450820), (28, 1139930), (35, 911944), (40, 797951), (43, 742280), (44, 725410), (55, 580328), (56, 569965), (70, 455972), (77, 414520), (86, 371140), (88, 362705), (110, 290164), (140, 227986), (154, 207260), (172, 185570), (215, 148456), (220, 145082), (241, 132440), (280, 113993), (301, 106040), (308, 103630), (344, 92785), (385, 82904), (430, 74228), (440, 72541), (473, 67480), (482, 66220), (602, 53020), (616, 51815), (770, 41452), (860, 37114), (946, 33740), (964, 33110), (1204, 26510), (1205, 26488), (1505, 21208), (1540, 20726), (1687, 18920), (1720, 18557), (1892, 16870), (1928, 16555), (2365, 13496), (2408, 13255), (2410, 13244), (2651, 12040), (3010, 10604), (3080, 10363), (3311, 9640), (3374, 9460), (3784, 8435), (4730, 6748), (4820, 6622), (5302, 6020)]