256470815

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 329951232

約数和(自身を除く): 73480417

約数列:

[1, 5, 23, 71, 101, 115, 311, 355, 505, 1555, 1633, 2323, 7153, 7171, 8165, 11615, 22081, 31411, 35765, 35855, 110405, 157055, 164933, 507863, 722453, 824665, 2230181, 2539315, 3612265, 11150905, 51294163, 256470815]

約数ペア:

[(1, 256470815), (5, 51294163), (23, 11150905), (71, 3612265), (101, 2539315), (115, 2230181), (311, 824665), (355, 722453), (505, 507863), (1555, 164933), (1633, 157055), (2323, 110405), (7153, 35855), (7171, 35765), (8165, 31411), (11615, 22081)]