256475284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{30259}}^1$

素因数の和:30439

約数の個数: 24

約数和(自身を含む): 486338720

約数和(自身を除く): 229863436

約数列:

[1, 2, 4, 13, 26, 52, 163, 326, 652, 2119, 4238, 8476, 30259, 60518, 121036, 393367, 786734, 1573468, 4932217, 9864434, 19728868, 64118821, 128237642, 256475284]

約数ペア:

[(1, 256475284), (2, 128237642), (4, 64118821), (13, 19728868), (26, 9864434), (52, 4932217), (163, 1573468), (326, 786734), (652, 393367), (2119, 121036), (4238, 60518), (8476, 30259)]