256419653

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1109}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 326073600

約数和(自身を除く): 69653947

約数列:

[1, 7, 17, 29, 67, 119, 203, 469, 493, 1109, 1139, 1943, 3451, 7763, 7973, 13601, 18853, 32161, 33031, 74303, 131971, 225127, 231217, 520121, 546737, 1263151, 2154787, 3827159, 8842057, 15083509, 36631379, 256419653]

約数ペア:

[(1, 256419653), (7, 36631379), (17, 15083509), (29, 8842057), (67, 3827159), (119, 2154787), (203, 1263151), (469, 546737), (493, 520121), (1109, 231217), (1139, 225127), (1943, 131971), (3451, 74303), (7763, 33031), (7973, 32161), (13601, 18853)]