68078890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 140849280

約数和(自身を除く): 72770390

約数列:

[1, 2, 5, 10, 11, 22, 37, 43, 55, 74, 86, 110, 185, 215, 370, 389, 407, 430, 473, 778, 814, 946, 1591, 1945, 2035, 2365, 3182, 3890, 4070, 4279, 4730, 7955, 8558, 14393, 15910, 16727, 17501, 21395, 28786, 33454, 35002, 42790, 71965, 83635, 87505, 143930, 158323, 167270, 175010, 183997, 316646, 367994, 618899, 791615, 919985, 1237798, 1583230, 1839970, 3094495, 6188990, 6807889, 13615778, 34039445, 68078890]

約数ペア:

[(1, 68078890), (2, 34039445), (5, 13615778), (10, 6807889), (11, 6188990), (22, 3094495), (37, 1839970), (43, 1583230), (55, 1237798), (74, 919985), (86, 791615), (110, 618899), (185, 367994), (215, 316646), (370, 183997), (389, 175010), (407, 167270), (430, 158323), (473, 143930), (778, 87505), (814, 83635), (946, 71965), (1591, 42790), (1945, 35002), (2035, 33454), (2365, 28786), (3182, 21395), (3890, 17501), (4070, 16727), (4279, 15910), (4730, 14393), (7955, 8558)]