20187721295

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{88289}}^1$

素因数の和:88487

約数の個数: 32

約数和(自身を含む): 28478822400

約数和(自身を除く): 8291101105

約数列:

[1, 5, 7, 35, 47, 139, 235, 329, 695, 973, 1645, 4865, 6533, 32665, 45731, 88289, 228655, 441445, 618023, 3090115, 4149583, 12272171, 20747915, 29047081, 61360855, 85905197, 145235405, 429525985, 576792037, 2883960185, 4037544259, 20187721295]

約数ペア:

[(1, 20187721295), (5, 4037544259), (7, 2883960185), (35, 576792037), (47, 429525985), (139, 145235405), (235, 85905197), (329, 61360855), (695, 29047081), (973, 20747915), (1645, 12272171), (4865, 4149583), (6533, 3090115), (32665, 618023), (45731, 441445), (88289, 228655)]