20857079270

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{517417}}^1$

素因数の和:517592

約数の個数: 32

約数和(自身を含む): 39116800800

約数和(自身を除く): 18259721530

約数列:

[1, 2, 5, 10, 29, 58, 139, 145, 278, 290, 695, 1390, 4031, 8062, 20155, 40310, 517417, 1034834, 2587085, 5174170, 15005093, 30010186, 71920963, 75025465, 143841926, 150050930, 359604815, 719209630, 2085707927, 4171415854, 10428539635, 20857079270]

約数ペア:

[(1, 20857079270), (2, 10428539635), (5, 4171415854), (10, 2085707927), (29, 719209630), (58, 359604815), (139, 150050930), (145, 143841926), (278, 75025465), (290, 71920963), (695, 30010186), (1390, 15005093), (4031, 5174170), (8062, 2587085), (20155, 1034834), (40310, 517417)]