51881020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{439}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 115315200

約数和(自身を除く): 63434180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 311, 380, 439, 622, 878, 1244, 1555, 1756, 2195, 3110, 4390, 5909, 6220, 8341, 8780, 11818, 16682, 23636, 29545, 33364, 41705, 59090, 83410, 118180, 136529, 166820, 273058, 546116, 682645, 1365290, 2594051, 2730580, 5188102, 10376204, 12970255, 25940510, 51881020]

約数ペア:

[(1, 51881020), (2, 25940510), (4, 12970255), (5, 10376204), (10, 5188102), (19, 2730580), (20, 2594051), (38, 1365290), (76, 682645), (95, 546116), (190, 273058), (311, 166820), (380, 136529), (439, 118180), (622, 83410), (878, 59090), (1244, 41705), (1555, 33364), (1756, 29545), (2195, 23636), (3110, 16682), (4390, 11818), (5909, 8780), (6220, 8341)]