261844130

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{72533}}^1$

素因数の和:72578

約数の個数: 24

約数和(自身を含む): 497438172

約数和(自身を除く): 235594042

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 72533, 145066, 362665, 725330, 1378127, 2756254, 6890635, 13781270, 26184413, 52368826, 130922065, 261844130]

約数ペア:

[(1, 261844130), (2, 130922065), (5, 52368826), (10, 26184413), (19, 13781270), (38, 6890635), (95, 2756254), (190, 1378127), (361, 725330), (722, 362665), (1805, 145066), (3610, 72533)]