18517980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23741}}^1$

素因数の和:23766

約数の個数: 48

約数和(自身を含む): 55841184

約数和(自身を除く): 37323204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23741, 47482, 71223, 94964, 118705, 142446, 237410, 284892, 308633, 356115, 474820, 617266, 712230, 925899, 1234532, 1424460, 1543165, 1851798, 3086330, 3703596, 4629495, 6172660, 9258990, 18517980]

約数ペア:

[(1, 18517980), (2, 9258990), (3, 6172660), (4, 4629495), (5, 3703596), (6, 3086330), (10, 1851798), (12, 1543165), (13, 1424460), (15, 1234532), (20, 925899), (26, 712230), (30, 617266), (39, 474820), (52, 356115), (60, 308633), (65, 284892), (78, 237410), (130, 142446), (156, 118705), (195, 94964), (260, 71223), (390, 47482), (780, 23741)]