28905018520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{964787}}^1$

素因数の和:964912

約数の個数: 64

約数和(自身を含む): 75021914880

約数和(自身を除く): 46116896360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 749, 856, 1070, 1498, 2140, 2996, 3745, 4280, 5992, 7490, 14980, 29960, 964787, 1929574, 3859148, 4823935, 6753509, 7718296, 9647870, 13507018, 19295740, 27014036, 33767545, 38591480, 54028072, 67535090, 103232209, 135070180, 206464418, 270140360, 412928836, 516161045, 722625463, 825857672, 1032322090, 1445250926, 2064644180, 2890501852, 3613127315, 4129288360, 5781003704, 7226254630, 14452509260, 28905018520]

約数ペア:

[(1, 28905018520), (2, 14452509260), (4, 7226254630), (5, 5781003704), (7, 4129288360), (8, 3613127315), (10, 2890501852), (14, 2064644180), (20, 1445250926), (28, 1032322090), (35, 825857672), (40, 722625463), (56, 516161045), (70, 412928836), (107, 270140360), (140, 206464418), (214, 135070180), (280, 103232209), (428, 67535090), (535, 54028072), (749, 38591480), (856, 33767545), (1070, 27014036), (1498, 19295740), (2140, 13507018), (2996, 9647870), (3745, 7718296), (4280, 6753509), (5992, 4823935), (7490, 3859148), (14980, 1929574), (29960, 964787)]