8448380

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{659}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 17796240

約数和(自身を除く): 9347860

約数列:

[1, 2, 4, 5, 10, 20, 641, 659, 1282, 1318, 2564, 2636, 3205, 3295, 6410, 6590, 12820, 13180, 422419, 844838, 1689676, 2112095, 4224190, 8448380]

約数ペア:

[(1, 8448380), (2, 4224190), (4, 2112095), (5, 1689676), (10, 844838), (20, 422419), (641, 13180), (659, 12820), (1282, 6590), (1318, 6410), (2564, 3295), (2636, 3205)]