289347580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{761441}}^1$

素因数の和:761469

約数の個数: 24

約数和(自身を含む): 639611280

約数和(自身を除く): 350263700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 761441, 1522882, 3045764, 3807205, 7614410, 14467379, 15228820, 28934758, 57869516, 72336895, 144673790, 289347580]

約数ペア:

[(1, 289347580), (2, 144673790), (4, 72336895), (5, 57869516), (10, 28934758), (19, 15228820), (20, 14467379), (38, 7614410), (76, 3807205), (95, 3045764), (190, 1522882), (380, 761441)]