20123409580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1\times {\mathrm{81097}}^1$

素因数の和:81778

約数の個数: 48

約数和(自身を含む): 44551997280

約数和(自身を除く): 24428587700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 653, 1306, 2612, 3265, 6530, 12407, 13060, 24814, 49628, 62035, 81097, 124070, 162194, 248140, 324388, 405485, 810970, 1540843, 1621940, 3081686, 6163372, 7704215, 15408430, 30816860, 52956341, 105912682, 211825364, 264781705, 529563410, 1006170479, 1059126820, 2012340958, 4024681916, 5030852395, 10061704790, 20123409580]

約数ペア:

[(1, 20123409580), (2, 10061704790), (4, 5030852395), (5, 4024681916), (10, 2012340958), (19, 1059126820), (20, 1006170479), (38, 529563410), (76, 264781705), (95, 211825364), (190, 105912682), (380, 52956341), (653, 30816860), (1306, 15408430), (2612, 7704215), (3265, 6163372), (6530, 3081686), (12407, 1621940), (13060, 1540843), (24814, 810970), (49628, 405485), (62035, 324388), (81097, 248140), (124070, 162194)]