28381960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 66539520

約数和(自身を除く): 38157560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 127, 148, 151, 185, 254, 296, 302, 370, 508, 604, 635, 740, 755, 1016, 1208, 1270, 1480, 1510, 2540, 3020, 4699, 5080, 5587, 6040, 9398, 11174, 18796, 19177, 22348, 23495, 27935, 37592, 38354, 44696, 46990, 55870, 76708, 93980, 95885, 111740, 153416, 187960, 191770, 223480, 383540, 709549, 767080, 1419098, 2838196, 3547745, 5676392, 7095490, 14190980, 28381960]

約数ペア:

[(1, 28381960), (2, 14190980), (4, 7095490), (5, 5676392), (8, 3547745), (10, 2838196), (20, 1419098), (37, 767080), (40, 709549), (74, 383540), (127, 223480), (148, 191770), (151, 187960), (185, 153416), (254, 111740), (296, 95885), (302, 93980), (370, 76708), (508, 55870), (604, 46990), (635, 44696), (740, 38354), (755, 37592), (1016, 27935), (1208, 23495), (1270, 22348), (1480, 19177), (1510, 18796), (2540, 11174), (3020, 9398), (4699, 6040), (5080, 5587)]