20245875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{4153}}^1$

素因数の和:4184

約数の個数: 32

約数和(自身を含む): 36289344

約数和(自身を除く): 16043469

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 4153, 4875, 12459, 20765, 53989, 62295, 103825, 161967, 269945, 311475, 519125, 809835, 1349725, 1557375, 4049175, 6748625, 20245875]

約数ペア:

[(1, 20245875), (3, 6748625), (5, 4049175), (13, 1557375), (15, 1349725), (25, 809835), (39, 519125), (65, 311475), (75, 269945), (125, 161967), (195, 103825), (325, 62295), (375, 53989), (975, 20765), (1625, 12459), (4153, 4875)]