20468635

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 28486080

約数和(自身を除く): 8017445

約数列:

[1, 5, 11, 29, 41, 55, 145, 205, 313, 319, 451, 1189, 1565, 1595, 2255, 3443, 5945, 9077, 12833, 13079, 17215, 45385, 64165, 65395, 99847, 141163, 372157, 499235, 705815, 1860785, 4093727, 20468635]

約数ペア:

[(1, 20468635), (5, 4093727), (11, 1860785), (29, 705815), (41, 499235), (55, 372157), (145, 141163), (205, 99847), (313, 65395), (319, 64165), (451, 45385), (1189, 17215), (1565, 13079), (1595, 12833), (2255, 9077), (3443, 5945)]