256987010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{50291}}^1$

素因数の和:50378

約数の個数: 32

約数和(自身を含む): 535911552

約数和(自身を除く): 278924542

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 5110, 50291, 100582, 251455, 352037, 502910, 704074, 1760185, 3520370, 3671243, 7342486, 18356215, 25698701, 36712430, 51397402, 128493505, 256987010]

約数ペア:

[(1, 256987010), (2, 128493505), (5, 51397402), (7, 36712430), (10, 25698701), (14, 18356215), (35, 7342486), (70, 3671243), (73, 3520370), (146, 1760185), (365, 704074), (511, 502910), (730, 352037), (1022, 251455), (2555, 100582), (5110, 50291)]