20402850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10463}}^1$

素因数の和:10491

約数の個数: 48

約数和(自身を含む): 54496512

約数和(自身を除く): 34093662

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10463, 20926, 31389, 52315, 62778, 104630, 136019, 156945, 261575, 272038, 313890, 408057, 523150, 680095, 784725, 816114, 1360190, 1569450, 2040285, 3400475, 4080570, 6800950, 10201425, 20402850]

約数ペア:

[(1, 20402850), (2, 10201425), (3, 6800950), (5, 4080570), (6, 3400475), (10, 2040285), (13, 1569450), (15, 1360190), (25, 816114), (26, 784725), (30, 680095), (39, 523150), (50, 408057), (65, 313890), (75, 272038), (78, 261575), (130, 156945), (150, 136019), (195, 104630), (325, 62778), (390, 52315), (650, 31389), (975, 20926), (1950, 10463)]