85628720

素因数分解:

$2^4\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1549}}^1$

素因数の和:2253

約数の個数: 40

約数和(自身を含む): 199503600

約数和(自身を除く): 113874880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691, 1382, 1549, 2764, 3098, 3455, 5528, 6196, 6910, 7745, 11056, 12392, 13820, 15490, 24784, 27640, 30980, 55280, 61960, 123920, 1070359, 2140718, 4281436, 5351795, 8562872, 10703590, 17125744, 21407180, 42814360, 85628720]

約数ペア:

[(1, 85628720), (2, 42814360), (4, 21407180), (5, 17125744), (8, 10703590), (10, 8562872), (16, 5351795), (20, 4281436), (40, 2140718), (80, 1070359), (691, 123920), (1382, 61960), (1549, 55280), (2764, 30980), (3098, 27640), (3455, 24784), (5528, 15490), (6196, 13820), (6910, 12392), (7745, 11056)]