278312305

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{881}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 362734848

約数和(自身を除く): 84422543

約数列:

[1, 5, 23, 41, 67, 115, 205, 335, 881, 943, 1541, 2747, 4405, 4715, 7705, 13735, 20263, 36121, 59027, 63181, 101315, 180605, 295135, 315905, 830783, 1357621, 2420107, 4153915, 6788105, 12100535, 55662461, 278312305]

約数ペア:

[(1, 278312305), (5, 55662461), (23, 12100535), (41, 6788105), (67, 4153915), (115, 2420107), (205, 1357621), (335, 830783), (881, 315905), (943, 295135), (1541, 180605), (2747, 101315), (4405, 63181), (4715, 59027), (7705, 36121), (13735, 20263)]