255804965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{431}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 346622976

約数和(自身を除く): 90818011

約数列:

[1, 5, 13, 23, 65, 115, 299, 397, 431, 1495, 1985, 2155, 5161, 5603, 9131, 9913, 25805, 28015, 45655, 49565, 118703, 128869, 171107, 593515, 644345, 855535, 2224391, 3935461, 11121955, 19677305, 51160993, 255804965]

約数ペア:

[(1, 255804965), (5, 51160993), (13, 19677305), (23, 11121955), (65, 3935461), (115, 2224391), (299, 855535), (397, 644345), (431, 593515), (1495, 171107), (1985, 128869), (2155, 118703), (5161, 49565), (5603, 45655), (9131, 28015), (9913, 25805)]