28385885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 10321315

約数列:

[1, 5, 11, 47, 55, 79, 139, 235, 395, 517, 695, 869, 1529, 2585, 3713, 4345, 6533, 7645, 10981, 18565, 32665, 40843, 54905, 71863, 120791, 204215, 359315, 516107, 603955, 2580535, 5677177, 28385885]

約数ペア:

[(1, 28385885), (5, 5677177), (11, 2580535), (47, 603955), (55, 516107), (79, 359315), (139, 204215), (235, 120791), (395, 71863), (517, 54905), (695, 40843), (869, 32665), (1529, 18565), (2585, 10981), (3713, 7645), (4345, 6533)]