30981820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{311}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 69346368

約数和(自身を除く): 38364548

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 293, 311, 340, 586, 622, 1172, 1244, 1465, 1555, 2930, 3110, 4981, 5287, 5860, 6220, 9962, 10574, 19924, 21148, 24905, 26435, 49810, 52870, 91123, 99620, 105740, 182246, 364492, 455615, 911230, 1549091, 1822460, 3098182, 6196364, 7745455, 15490910, 30981820]

約数ペア:

[(1, 30981820), (2, 15490910), (4, 7745455), (5, 6196364), (10, 3098182), (17, 1822460), (20, 1549091), (34, 911230), (68, 455615), (85, 364492), (170, 182246), (293, 105740), (311, 99620), (340, 91123), (586, 52870), (622, 49810), (1172, 26435), (1244, 24905), (1465, 21148), (1555, 19924), (2930, 10574), (3110, 9962), (4981, 6220), (5287, 5860)]